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The article discusses the discovery and mineralogy of greenlizardite, a hydrated ammonium sodium uranyl sulfate found in the Green Lizard mine in San Juan County, Utah. The mineral formed in a secondary crust on a mined wall underground and is associated with other sulfate minerals. The history of mining in the White Canyon district, particularly the uranium boom during World War II and the subsequent decline in production, is also detailed. The Green Lizard mine, now closed with a bat-accessible grate, has been the site of mineral collection and research, leading to the discovery of new minerals. [Extracted from the article]

The article discusses the mineral downsite, a hydrated potassium molybdate sulfate found in Utah, named after Dr. Robert Downs for his contributions to mineralogy. Downs, a professor emeritus at the University of Arizona, has made significant advancements in crystal structure databases and mineral research. He has received numerous awards and honors for his work, including the Leonard G. Berry Medal and the Carnegie Mineralogical Award. Additionally, Downs has been involved in projects such as the RRUFF database and the Alfie Norville Gem and Mineral Museum, showcasing his dedication to mineralogy and education. [Extracted from the article]

The article discusses Mont Saint-Hilaire in Quebec, Canada, as a renowned mineral locality with over 440 distinct mineral species, attracting collectors and researchers for over fifty years. The unique geology of Mont Saint-Hilaire, specifically the East Hill Suite, has led to the discovery of exotic minerals, including carletonite. The Canadian Museum of Nature has a long history of research on Mont Saint-Hilaire, with the recent acquisition of the Gilles Haineault Collection, containing over 8,000 specimens, making it a national treasure. The museum has developed a new exhibit focusing on Mont Saint-Hilaire's mineralogy, citizen-science, and rare mineral diversity, showcasing specimens from the Haineault Collection and the national collection. [Extracted from the article]

The Rochester Mineralogical Symposium (RMS) was a prominent event in specimen mineralogy for over five decades, featuring talks, technical sessions, publications, exhibits, and auctions that advanced the field. The symposium aimed to bring together collectors, curators, dealers, and professionals to share knowledge and promote mineral conservation and education. In 2011, the RMS was honored with the Carnegie Mineralogical Award for its significant contributions to mineralogy, preservation, conservation, and education. The legacy of the RMS endures through the relationships and collaborations it cultivated within the mineral community. [Extracted from the article]

This article discusses the mineral specimen known as samsonite, which is highly valued by collectors. Samsonite is a rare mineral composed of silver, manganese, and sulfur, and it was discovered in the St. Andreasberg mining district in Germany. The article provides information about the physical characteristics of samsonite and its historical significance. It also describes the acquisition process of a samsonite specimen by the Smithsonian Institution. Overall, the article offers valuable insights into the world of mineral collecting and the importance of samsonite as a prized mineral specimen. [Extracted from the article]

The article provides a comprehensive overview of the events and developments in the field of micromounting in 2023. It discusses the incorporation of Zoom components into physical micromount events and the potential for a permanent Zoom component in the future. The article also acknowledges the deaths of prominent figures in the micromounting community and their contributions to the field. It highlights various micromounting events and symposia that took place throughout the year, showcasing the global nature of the hobby and the camaraderie among enthusiasts. The text emphasizes the importance of preserving micromounting traditions and providing educational opportunities for students. It concludes by mentioning other small organizations and providing contact information for further information. [Extracted from the article]

The text discusses the discovery of phenakite crystals at the Orchard pit in Buckfield, Oxford County, Maine. Previously, phenakite was only confirmed at the Lord Hill quarry in Stoneham. The Orchard pit has a unique geology and mineralogy compared to nearby quarries, and phenakite crystals of various sizes and forms have been found there. The mining operation at the site ended in 2003, and the phenakite crystals found ranged in size and color, with many showing "drill-bit" terminations. Other minerals such as beryl, bertrandite, columbite-(Fe), fluorapatite, and quartz are also present at the site. The importance of labeling and documenting mineral specimens is emphasized. [Extracted from the article]

This article provides information about Wyoming jade, specifically the two types of rock it is composed of: jadeitite and nephrite. Nephrite is the more common type and is known for its toughness and ability to be carved into delicate shapes. Wyoming jade is found in various mountain ranges in central and eastern Wyoming, particularly in areas where crustal plates have collided. The formation of jade in this region is believed to be a result of hydrothermal fluids interacting with amphiboles and crystallizing rapidly in a tectonically active environment. Detrital jade, or jade float, is also found in alluvial deposits downstream from primary deposits. [Extracted from the article]

This text provides information about the mineral mendipite, including its appearance, analysis, and various global localities where it has been found. Mendipite is a lead oxychloride that is colorless to white, grayish-white, or brownish-cream, but can also have tinges of pink, purple, yellow, or blue. It is commonly found alongside other minerals such as calcite, cerussite, malachite, and pyromorphite. Mendipite has been discovered in twelve natural locations worldwide, with three of them being in the Mendip Hills in southwest England. These hills have a rich mining history dating back to Roman times and are primarily composed of sedimentary rocks. The characteristics of mendipite can vary depending on the specific locality, and it is often associated with other rare minerals. [Extracted from the article]

This document is an autobiographical account by Dr. Steven C. Chamberlain, a mineral collector, about his experiences collecting minerals in New York State. He discusses his early experiences with rock collecting and his passion for mineral collecting, which led him to build a collection of almost 35,000 specimens. Dr. Chamberlain describes his interactions with other collectors and dealers, as well as his collaboration with experts on minerals in northern New York. He also emphasizes the scientific and historical value of his collection and the importance of cataloging and documenting specimens. Ultimately, Dr. Chamberlain donated his collection to the New York State Museum. [Extracted from the article]

Christopher Smith-Duque, a UK mineral artist, has had a lifelong passion for rocks and art. As a child, he was fascinated by Earth processes and minerals, and he would search for treasures on fishing trips and family vacations. Smith-Duque pursued a career in geology, earning a master's degree and a PhD, but eventually realized that his true passion lay in art. He began painting minerals after getting involved with the Greenlaws Mining Project and seeing mineral specimens in situ and at shows. Smith-Duque's artwork, which features a sharp, graphic interpretation of realism, is available for view and sale on various websites. [Extracted from the article]

The article discusses various mineral-related events and exhibitions happening in different locations. It highlights the Best Photo Competition at the Tucson Show, featuring mineral photos by photographer Jeff Scovil. The Connoisseur's Choice column focuses on minerals appealing to collectors, with text and photos by Mark Mauthner. The East Coast Show in West Springfield will showcase magnificent specimens from the collections of Dr. Terry C. Wallace and Dr. Joan Massagué. Additionally, Keweenaw Week in Michigan will host a series of mineral-related events, including a mineral show and collecting activities. The article also acknowledges the contributions of various organizations and individuals in supporting color photography in the publication. [Extracted from the article]

The text discusses the formation and characteristics of cleavelandite, a type of albite mineral found in granitic pegmatites. It explains that cleavelandite forms in cavities after the magma solidifies and that the presence of certain minerals and conditions in the pocket environment contribute to its formation. The text also discusses the differences in cleavelandite formation in LCT and NYF pegmatites, which are different types of granitic pegmatites. Dr. Robert F. Martin explores the formation and characteristics of cleavelandite, proposing that it forms through repeated nucleation in a supercritical fluid phase that is supersaturated with albite, with growth surfaces being poisoned by a nanolayer of phyllosilicate. The presence of cleavelandite in pegmatites indicates a shallow depth and the presence of cavities. Dr. Martin's research contributes to a better understanding of the genesis of cleavelandite and the nature of pegmatite formation. [Extracted from the article]

Khorixasite is a mineral that is the bismuth analogue of mottramite. It is yellow-green in color and occurs as acicular crystals that aggregate into sprays and clusters. The type locality of khorixasite is the Mesopotamia mine in Namibia, and there is also a reported occurrence at the Mashamba West mine in the Democratic Republic of the Congo. Khorixas, the small town near the type locality, is a tourist hub for several nearby sites of geological and anthropological interest, including the Petrified Forest, Organ Pipes, Burnt Mountain, and Vingerklip. [Extracted from the article]

Lina Jakaitė is a Lithuanian artist who combines her passion for art and geology to create incredibly detailed images of minerals and geological features. She initially had to choose between pursuing a career in art or geology, but ultimately decided to study geology and obtained bachelor's and master's degrees from Vilnius University. After working as a geologist for ten years, Jakaitė realized that she could better explain complex concepts through artistic illustrations and videos. She now uses design software tools like Blender and Substance Painter to create three-dimensional models of minerals and geological scenes, resulting in images that closely resemble photography. Her work has been displayed at various exhibitions and can be viewed and purchased on her website. [Extracted from the article]

The Empire State mine in Balmat, New York, is known for its fine mineral specimens, including sphalerites, calcites, pyrite, pyrrhotite, halite, and quartz. The article acknowledges the lack of detailed documentation on mineral discoveries in the area but provides a list of 116 known minerals from the Balmat mines. The Empire State mine, owned by Titan Mining Corporation, is one of six zinc mines in the region. The rocks in the mines have undergone metamorphism, and the formation of mineral pockets occurred due to fluid movements. Recent discoveries of minerals in the mine have attracted attention from collectors and researchers, and it is hoped that future documentation will provide more information about these finds. [Extracted from the article]

Rebecca Johnston is a Seattle mixed-media artist who has a passion for minerals and nature. She began collecting minerals after attending a mineral show in Seattle and became hooked, eventually becoming a stakeholder in three quartz claims. During the pandemic lockdown, Johnston focused on producing mineral portraits using pastels, charcoal, pen, and paint. Her artwork has been featured in shows and she has also created mineral-related products such as art prints, stickers, and vinyl graphic shirts. Johnston's work can be viewed on her website and she can be contacted via email. [Extracted from the article]

The article provides a historical account of the New Cornelia copper mine in Ajo, Arizona. It discusses the challenges faced by the mine, including low-grade copper deposits and difficulties in metallurgy. The text also highlights the minerals found at the mine, such as Ajoite, Azurite, Calcite, Chrysocolla, and Copper. The article includes descriptions and photographs of different copper specimens and acknowledges the contributions of collectors and researchers in enhancing our understanding of these minerals. This information is valuable for researchers interested in the New Cornelia mine and its mineral specimens. [Extracted from the article]

This article discusses the mineral willemseite, which is the nickel analogue of talc and minnesotaite. It was first described in material from the Bon Accord nickel deposit in South Africa and is characterized by its light green color, Mohs hardness of 2, and perfect cleavage. The mineral is named after Professor Johannes Willemse, an authority on layered intrusions and the head of the Department of Geology at the University of Pretoria. The article also provides information about the Bon Accord nickel deposit and Willemse's contributions to the field of geology. [Extracted from the article]

The text provides information about Montebrasite, a lithium aluminum phosphate mineral, and the Montebras tin mine in Creuse, France. Montebrasite was named after the quarry where it was discovered, which has a long history of mining phosphate minerals since pre-Roman times. The quarry remains active and is popular among collectors. The Montebras tin mine, rediscovered in 1858, has been owned by Imerys since 2005 and primarily mines white albitic leucogranite for ceramics. The mine employs local residents and is located near the hamlet of Montebras. The text acknowledges the contributions of several individuals in creating and improving the manuscript, which draws from French-language publications. [Extracted from the article]

This article discusses the discovery of a new mineral called alicewilsonite-(YCe), which belongs to the mckelveyite group. The mineral is triclinic and occurs in various shapes and colors. It was first found in Canada and has also been found in Russia. The mineral is named after Alice Evelyn Wilson, a prominent Canadian geologist known for her contributions to paleontology and geology. The article provides a brief biography of Wilson, highlighting her achievements and contributions to the field. It also mentions that a tunnel-boring machine in Montreal was named after her. [Extracted from the article]

This article provides information on the gemstone topaz, highlighting its historical significance as a semiprecious stone and its importance in mineral specimens. It discusses the occurrence of topaz in various locations worldwide, particularly in Brazil and Russia. The article focuses on topaz found in pegmatites, describing its association with other minerals and the factors that influence its abundance and color. It also mentions notable localities where topaz crystals have been found, including New Hampshire, Colorado, Texas, Argentina, Mongolia, Namibia, Australia, Russia, Ukraine, California, Maine, Pakistan, Afghanistan, Zimbabwe, and Mozambique. Additionally, the article briefly mentions the use of topaz in the gemstone industry and its limited industrial applications. [Extracted from the article]

This article provides information about Arthur L. Flagg, a prominent figure in the field of mineralogy. Flaggite, a mineral named after him, is described as a hydrated lead copper tellurium sulfate. The article also discusses Flagg's career in mining and his contributions to the mineralogical community, including his involvement in founding the Mineralogical Society of Arizona and the Rocky Mountain Federation of Mineral Societies. After his death, the A. L. Flagg Foundation for the Advancement of Earth Sciences was established, which now operates events and maintains a collection of minerals. [Extracted from the article]

Bookplate and mineral collector Esche not only has an excellent collection of geology/mineralogy/mining-related bookplates, but also has many other bookplates that he commissioned for himself. Retired mineral dealer and longtime book, artifact, and mineral collector Obodda has two bookplates for his book collections, both with the classic hammer and chisel motif. However, at least two of his bookplates exist in the John Sinkankas Collections of Bookplates that is housed in the Richard T. Liddicoat Gemological Library and Information Center in Carlsbad, California. I soon discovered that some familiar names with well-known large libraries in our mineral community do not have their own bookplates, with one of them calling modern bookplates in old books a desecration. [Extracted from the article]

Following on this, the foreground figure is humanoid but intentionally stripped of traits of individual identity; Delventhal wanted any passerby to be able to envision themselves as the lead character in the story. That said, Delventhal wanted the work to be a statement to what she considers her family - the mineral collecting community - and its importance. However, a lasting record of Delventhal's mineral-related art, and the focus of this article, is a mural she designed and painted at Mineral City early this year (January/February 2023). [Extracted from the article]

For most micromount associations, 2022 was a year of, "Should we, or shouldn't we?" A mark of their expertise is that both have minerals named in their honor: mikehowardite, Fe SB 4 sb SP 3+ sp (V SP 5+ sp O SB 4 sb ) SB 4 sb (H SB 2 sb O) SB 2 sb -H SB 2 sb O, and jasonsmithite, Mn SB 4 sb SP 2+ sp ZnAl(PO SB 4 sb ) SB 4 sb (OH)(H SB 2 sb O) SB 7 sb -3.5H SB 2 sb O. July through September The summer months were remarkably quiet, at least on the inside, but both inside and outside were shaken back to life with the opening of the B 4th Central US Micromineral Symposium (CUSMMS) b on 1 September at the Boyle County Public Library in Danville, Kentucky. B Mick Mackenzie b popped up again to win the I Ruth Jacobson Trophy i for best specimen from last year's symposium with a phillipsite and goethite on calcite from Whiskey Bay in the South Island, and B Mathew Singleton b gained the I Combined Mineralogical Societies Trophy i for the best digital photo of a magnified New Zealand specimen with a shot of torbernite from Buller Gorge, South Island. That would have sent North American associations into spasms of joy. [Extracted from the article]

Windmountainite is relatively rare: aside from its occurrence at Wind Mountain, it is only reported (but not confirmed by quantitative chemical analysis) on Mindat.org (accessed June 2023) at the Aris phonolite intrusion in Windhoek, Namibia, where other palygorskite-group minerals have been found. Representative crystal-structure models of (A) palygorskite group, (B) amphibole supergroup, (C) sepiolite group, and (D) 2:1 phyllosilicates (mica group), illustrating the structural similarities between windmountainite (palygorskite group) to other minerals. WINDMOUNTAINITE, a hydrated ferric iron magnesium silicate Graph HT ht , was discovered by one of us (AMM) in material collected in 2012 from Wind Mountain, New Mexico (fig. 1). [Extracted from the article]

The danburite crystals from Larak Island are most often doubly terminated and can be quickly distinguished from those from Hormuz, which are characterized by a well-developed {001} face and more modifications including the forms {120}, {110}, {100}, and {011}. Danburite crystals on rhyolitic matrix from Larak Island; specimen width 12 cm, largest crystal 2.5 cm. Vachik Hairapetian specimen and photo. In addition to the differences in crystal size, transparency, and color, crystals of danburite from Hormuz Island tend to develop as more complex clusters than those from Larak Island. Danburite crystals on rhyolitic matrix from Larak Island; specimen width 7.1 cm, largest crystal 1.3 cm. Vachik Hairapetian specimen and photo. [Extracted from the article]

Tsumeb Aragonite Categories Most aragonite occurrences at Tsumeb fall into one of the following five categories: "pure" aragonite, I nicholsonite, tarnowitzite, i aragonite flowstone, and pseudomorphs. Aragonite Flowstone The seepage of groundwater through the dolostone host rocks at Tsumeb commonly resulted in the precipitation of sheets of aragonite resembling frozen waterfalls with gently mammilated surfaces on the walls of the underground mine workings. The Kabwe mine aragonite is currently represented by one large preserved specimen consisting of aragonite on vanadinite (Southwood, Cairncross, and Rumsey [26]) (fig. 52). Aprevious Connoisseur's Choice column (Pohwat [22]) featured aragonite from Western Europe (part 1) and beyond (part 2), the latter making brief mention of specimens from Morocco, and Namibia, South Africa. [Extracted from the article]

THE FOCUS OF THIS ARTICLE is on mineral collectors who include microcrystals that occur in Michigan's Keweenaw Peninsula as one facet of their collecting interests. A group of complex silver crystals (field of view 1.5 mm) found in a vug of crystallized prehnite at the Cliff mine, Avery shaft, Clifton, Keweenaw County, by Robert Nagel 2017. An isolated silver crystal with copper wires in a vug of prehnite and quartz (field of view 1.5 cm), from the Cliff mine, Avery shaft, Clifton, Keweenaw County. His best micros were found in the first three or four years when he collected heavily at the Mohawk mine, No. 1 shaft, Mohawk, Keweenaw County, and the Michigan mine, Ontonagon County. [Extracted from the article]

In addition, two world-famous mineral localities - Mont Saint-Hilaire, Canada, and the Kalahari manganese field, South Africa - have produced the finest examples of schizolite, but these, too, have followed a diverse path until investigations revealed their true identity (fig. 1). Several large schizolite crystals with a scattering of smaller crystals below; tiny pale yellow hydroxyapophyllite-(K) is also present, 4.3 cm, Wessels mine, Kalahari manganese field, South Africa. A sample containing a pectolite-serandite series mineral with chemical compositions nearly identical to "marshallsussmanite" has been identified (Andersen, Elburg, and Erambert [1]), although crystal structure analyses are required to verify that the mineral is schizolite. B I "Schizolite has had a long and difficult history." i b B Horváth et al. ( b [8] B , p. 391) b Schizolite has undergone some mineralogical ignominy since its description and naming by Winther ([22]). [Extracted from the article]

The obituary in "Rocks & Minerals" pays tribute to the life and contributions of Dr. George Willard Robinson (1946–2024), a respected figure in the field of mineralogy. Dr. Robinson's extensive career spanned from being a field collector to a curator at various institutions, where he amassed a wealth of knowledge in mineralogy and crystallography. His significant publications, contributions to museum exhibits, and professional service have left a lasting impact on the field. Dr. Robinson's legacy is honored through various accolades and the dedication of the George W. Robinson Mineralogy Laboratory. [Extracted from the article]

The book review discusses the second edition of "Pegmatology: Pegmatite Mineralogy, Petrology & Petrogenesis" by William "Skip" Simmons, Karen L. Webber, Alexander U. Falster, Encarnación Roda-Robles, and Donald A. Dallaire. The book is an updated and expanded version of the original textbook, focusing on the geology and mineralogy of Maine pegmatites. It provides basic geological knowledge for readers without a background in geology and includes descriptions of major pegmatite minerals, with a particular emphasis on occurrences in Maine and adjacent New Hampshire. The book also offers information on miarolitic gem pocket indicators and detailed descriptions of pegmatite areas in New Hampshire and Wisconsin. The review recommends the book as a valuable resource for new pegmatite field collectors and owners of the first edition. [Extracted from the article]

The article discusses the upcoming Tucson Gem and Mineral Show, which has been a prominent event in the mineral community since the 1970s. The show attracts enthusiasts, professionals, and the general public, offering a wide range of minerals, gems, fossils, and educational opportunities. The 2024 Main Show will have a theme focused on pegmatites, showcasing big and beautiful crystals. The article also mentions other related events and activities happening in Tucson before and during the show. Additionally, it highlights the discovery of a new mineral named petermegawite after Dr. Peter Megaw, a well-known figure in the mineral community. The article concludes with acknowledgments to organizations and individuals who have supported the publication's color photography. [Extracted from the article]

The silicate mineral olivine concentrates nickel out of a magma (Cawthorn [3]). The bright yellow mineral is chalcopyrite, the off-white (bulk of the sample) is pyrrhotite, the brown (top left) is oxidized pyrrhotite, and the gray matrix is microgabbro. During the slow cooling of large intrusions, minerals form in the predetermined order of olivine, plagioclase, hypersthene, and clinopyroxene, and they sink in that same order to form layers of rock with different mineral assemblages. The dull yellow mineral is pyrrhotite, and the bright yellow mineral is chalcopyrite. [Extracted from the article]

By contrast, wulfenite, mimetite, vanadinite, and mottramite are relatively common at the Red Cloud Copper mine, and several other supergene minerals (brochantite, linarite, arsentsumebite, and so on) are present in small amounts at both mines. Those found at both the Red Cloud Copper mine and the Red Cloud Fluorite mine are so designated. Similarly, scrutiny of vuggy fluorite at the Red Cloud Fluorite mine may lead to the recognition of additional rare-earth minerals. In about 1943, the U.S. Bureau of Mines did exploratory work in the area of the Red Cloud Copper mine and established the Red Cloud Fluorite (or Conqueror No. 9) mine about 100 meters northeast of the Red Cloud Copper mine. [Extracted from the article]

In many ways, vanadium is what makes volborthite interesting, appropriately so for this contribution because vanadium's history is deeply rooted in Mexico. Vanadium is much more reactive in the presence of oxygen with no fewer than 264 described oxide species; 37 of these contain copper and 21 include uranium, the elements with which vanadium species are most commonly found - notably sengerite [Cu SB 2 sb (UO SB 2 sb ) SB 2 sb (VO SB 4 sb ) SB 2 sb -6H SB 2 sb O] is the only species that includes all three. Volborthite dominantly occurs in sediment-hosted vanadium-uranium oxide deposits, exemplified by the "roll-front" deposits of the Four Corners region in the American Southwest. These include native vanadium, simple vanadium sulfides, vanadium-copper sulfides, and complex vanadium-copper (plus As, Ge, Mo, Pb, Mo) sulfosalts. [Extracted from the article]

Microcline, KAlSi3O8 Along with quartz and albite, perthitic microcline is one of the dominant minerals in the pegmatites at Phnom Bayong. Late-stage hydrothermal quartz occurs in the pegmatites and miarolitic cavities as fine-grained (1-3-mm), translucent, white to yellow, euhedral, doubly terminated crystals on top of microcline and primary quartz. Multiple smaller tabular golden-white muscovite crystals to 6 mm form crusts on the larger muscovite crystals, feldspar, and quartz (fig. 16). Miarolitic Pegmatites The pegmatite mineralogy is dominated by quartz, microcline, albite (variety cleavelandite), two micas (zinnwaldite and muscovite), and chamosite. [Extracted from the article]

Detailed, previously published literature on cactus quartz is somewhat scant and out of date (Cairncross and Dixon [4]; Cairncross [2]) or not published in English (Cairncross, Bahmann, and Knoper [3]). A doubly terminated amethyst perched horizontally on a matrix of pale amethyst; 10.8 cm. Ashley and Gail Diack specimen, Bruce Cairncross photo. A large cactus quartz crystal, flanked by two smaller crystals, and surrounded by a ring of smaller amethyst; 14.8 cm. Ashley and Gail Diack specimen, Bruce Cairncross photo. A cluster of dark amethyst cactus quartz, acquired in 1986 when the crystals first appeared on the market in South Africa; 9.2 cm. Bruce Cairncross specimen and photo. [Extracted from the article]

Dolomite, CaMg(CO3)2 Dolomite is present as a rock-forming mineral at the North Vernon quarry and with one exception, does not form crystals - and even that occurrence is qualified. A 3.6-cm crystal of sphalerite, with epitactic chalcopyrite, on Geneva Dolomite, collected ca. 1979 from the Paul Frank (now Berry Materials) quarry at North Vernon. This 4.4-cm cluster of sphalerite crystals with tiny, 0.2-mm, chalcopyrite crystals and small, 1.7-mm, calcite crystals on Geneva Dolomite, was collected ca. 1979 from the Paul Frank (now Berry Materials) quarry. Chalcopyrite, CuFeS2 Copper-bearing minerals are uncommon in Indiana; however, tiny, 0.2-mm, crystals of chalcopyrite have been found on the surface of sphalerite crystals that occur in the Geneva Dolomite. [Extracted from the article]

Kombatite, Pb SB 14 sb (VO SB 4 sb ) SB 2 sb O SB 9 sb Cl SB 4 sb , is a lead vanadate oxychloride, named for the Kombat mine, near Grootfontein, in the Otjozondjupa region of Namibia (figs. Erikjonssonite, (Pb 32 O 21)[(V,Si,Mo,As)O 4 ] 4 Cl 9, a new mineral from the Kombat mine and structural classification of layered lead oxychlorides related to litharge. This article is concerned primarily with the etymology of kombatite, but it is notable that in addition to the seven lead oxychloride minerals highlighted in table 1, the Kombat mine is the type locality for nine other mineral species (table 3). Kombatite: Discovery, Description, and Identification Kombatite is one of at least ten rare, or very rare, lead oxychloride minerals reported from Kombat (table 1); remarkably, no less than seven of these species share Kombat as their type locality. [Extracted from the article]

Most of the micromineral inclusions generated by the RMR process in Schickler apatite appear to be REE minerals; an example EDS spectrum of a typical REE inclusion is shown in figure 2. The I T i I O i I T i modules within these minerals can be used to derive many mineral properties by first principles, e.g., habit, cleavage angles, and symmetry/polytypism (fig. 1). Among other minerals, striking red-brown apatite crystals, to 10+ cm, can be found hosted within the dissociated calcite-fluorite carbonatite matrix. However, the diversity of these modular rock-forming minerals results in complexity in terms of the crystal structures and crystal chemistries of this mineral family. [Extracted from the article]

One such Chantilly specimen has white heulandite crystals to about 3 mm sparsely scattered over calcite crystals and prehnite in a prehnite-lined vug in diabase. According to Medici ([17]), the 1967 find of prehnite and apophyllite provided two types of apophyllite specimens depending on whether they crystallized within or external to the prehnite tubes. At the Vulcan Sanders quarry, white chabazite crystals to 8 mm, calcite rhombohedral crystals to 1 cm, and laumontite crystals to 1 cm were found in vuggy diabase by Al Bullock, in April 1983. In 1999 a large specimen of white, zoned apophyllite crystals on a diabase matrix was found, with individual crystals to 7.5 × 3 cm. Numerous specimens of apophyllite are known to have been collected in the south pit of the Luck Leesburg Plant during 1990-2005. The numerous trap rock quarries of northern Virginia have been a prolific source of macro- and micromineral specimens for many decades. [Extracted from the article]

Native arsenic, skutterudite, and fluorite from Frisch Glück Stollen, Strecke 7, Frohnau, Erzgebirge, Saxony, Germany. I Note: i All sizes mentioned within the art image refer to the specimen's size, and the year given refers to when the specimen was found. Early paintings focused primarily on fluorite, especially those from the Erzgebirge (Ore Mountains), but today any mineral species can be her subject. [Extracted from the article]

Phosphorus makes up about 0.10 percent of the weight of Earth's crust in the form of phosphate minerals and phosphorus-containing organic compounds (e.g., Mackey and Paytan [11]; Tiessen [18]). Morocco, through its complex geological history - ranging from Archean to Quaternary - also hosts other phosphate minerals, making it a phosphate paradise for geologists and mineral collectors. Akin to Imilchil apatite, Moulay Bouazza pyromorphite is well appreciated by mineral collectors and is accessible on the international mineral market (e.g., Praszkier [15]). Moroccan Phosphate Minerals and Locations Apatite As is the case elsewhere, apatite in Morocco is the most ubiquitous phosphate mineral and is found in most sedimentary, igneous, and metamorphic settings. [Extracted from the article]

Wickenburgite, Pb SB 3 sb Al SB 2 sb CaSi SB 10 sb O SB 24 sb (OH) SB 6 sb , is a hydrated silicate that was discovered in several prospects near Wickenburg, Arizona, a historic pioneer town northwest of Phoenix (fig. 4). Williams ([7]) chose the Potter-Cramer mine for the type locality although wickenburgite was also found at the Moon Anchor mine and several prospects nearby (Polman [5]). Potter-Cramer Mine History The Potter-Cramer mine is located about 40 kilometers (25 miles) southwest of Wickenburg and 8 kilometers (5 miles) southwest of the former mining town of Vulture (fig. 4). Most of the old mines and prospects are still under valid mining claims, and the Potter-Cramer mine is just one of the many for which permission is absolutely required for mineral collecting!. [Extracted from the article]

Brittany MacRostie is a Denver-area artist who not only creates paintings of mineral art, but also experiments and uses many different media. Although MacRostie generally uses watercolor for her mineral paintings, she enjoys bringing minerals into some of the other artforms she has experimented with, including ink, digital illustration, woodburning, and needle felting. [Extracted from the article]

The article provides updates on various events and exhibitions related to minerals and museums. The Society of Mineral Museum Professionals (SMMP) held its annual meetings in conjunction with the Tucson Gem and Mineral Show, with new officers elected for the year. The Maine Mineral & Gem Museum and the University of Arizona Alfie Norville Gem & Mineral Museum were recognized for their exhibits at the Tucson Show. The North Carolina Museum of Natural Science unveiled a new permanent exhibition called Dueling Dinosaurs. Other upcoming events mentioned include the M&M10 Conference in Cardiff, Wales, the Socorro Mineral Symposium in New Mexico, the Tellus Symposium in Georgia, and the Dallas Mineral Collecting Symposium in Texas. [Extracted from the article]

To date, there are five members in the apophyllite group: fluorapophyllite-(K), fluorapophyllite-(Na), fluorapophyllite-(NH SB 4 sb ), fluorapophyllite-(Cs), and hydroxyapophyllite-(K). Apophyllite-type minerals are of great industrial and technological interest because they are examples of naturally occurring single-sheet silicates, and their reactions with chlorosilanes yield apophyllite-based organosilicate polymers on both sides of silicate sheets, which possess a unique combination of hydrophobic and hydrophilic properties that are highly tunable. [Extracted from the article]

Conclusion Ferruginous quartz is a well-established variety of impure quartz caused by dense concentrations of fine-grained hematite or (less commonly) goethite that precipitated while crystals of colorless quartz were growing. Quartz variety amethyst reddened by hematite inclusions (7.8 cm tall), an example of hematitic quartz, from the Kakamanurle mine, Karur, India. Associated with black, shiny hematite (specularite) crystals on red-brown massive hematite, they make striking specimens - the very best matrix specimens of ferruginous quartz available. Quartz like many minerals is I allochromatic i , meaning that it occurs in a wide variety of colors. [Extracted from the article]