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The effects of climate change may manifest themselves in different ways, but when it comes to coastal tourism, extreme temperatures, which are the unavoidable consequences of climate change, come to the fore. The study examined the changes that extreme temperatures can make on major coastal tourism destinations by using such indices as hot summer days, tropical nights, combined hot days and tropical nights, and days with dangerous apparent temperature (> 40.6 °C). Under the RCP4.5 and RCP8.5 scenarios, increases in these indices are expected for Antalya, Aydın, Balıkesir, İzmir, and Muğla on the Turquoise Coast in the near (2021-2050) and distant (2071-2100) future. The projections based on both scenarios indicate that there might be a rise in the number of hot summer days, tropical nights, and days exceeding the critical human thermal comfort conditions on the Turquoise Coast. Expected increases may reach the highest values under the pessimistic scenario at the end of the century. The increase in these indices caused by rising temperatures may adversely affect the tourism sector due to changes in tourism demands, destinations, and seasonal shifts. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Abant Social Sciences / Abant Sosyal Bilimler Dergisi is the property of Journal of Abant Social Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Cultural Studies / Kültür Araştırmaları Dergisi is the property of Journal of Cultural Studies / Kultur Arastirmalari Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article provides an in-depth analysis of the water quality in the Lunar-Lubha River in Meghalaya, India. The study reveals that the river undergoes a color change during the winter season, but the blue color is likely an illusion caused by light scattering rather than the actual color of the water. The analysis of the river water and sediment shows high levels of iron and alumina, indicating potential water quality issues. The study also highlights the impact of mining activities on water quality, with acid mine drainage contributing to the presence of iron and sulfate. The findings emphasize the importance of monitoring and addressing water pollution in the Lunar-Lubha River. [Extracted from the article]

Two types of turquoise, including homogeneous Cu-rich turquoise and oscillatory zoned turquoiseplanerite series, are recognized in association with quartz-barite veins hosted by Cambrian carbonaceous slates from western Hubei Province of China. Combined fluid inclusion and Raman micro-spectroscopic data reveal that turquoise-bearing barite-quartz veins contain three types of fluid inclusions (pure CH4-N2, carbonic-aqueous, and aqueous), suggesting the responsible fluid is of carbonic-aqueous composition with low oxygen fugacity. Pressure-corrected homogenization temperatures in quartz and barite show a range from 325 to 485 °C and 186 to 391 °C, respectively. Carbon, oxygen, and hydrogen isotopic data suggest that the mineral-forming fluids have a mixed metamorphic-organic affinity, in which the fluids have δ18O and δD values of 15.0 to 18.8‰ and –111 to –93‰, respectively. Generally, the formation of quartz-barite-turquoise veins could be triggered by prior metamorphic devolatilization, followed by the interaction of fluids with country rocks enriched in carbonaceous material, which resulted in the leaching of Cu, Fe, P, and Al from chalcopyrite, pyrite, magnetite, monazite, xenotime, apatite, feldspar, and muscovite in the wall rocks. Decomposition of the organic matter in the carbonaceous slates, caused by regional metamorphism and deformation, could also promote the concentration and transportation of necessary metals for the turquoise. Thus, we propose a new model and suggest that the turquoise gem deposits in western Hubei Province of China belong to the non-magmatic hydrothermal vein type deposit, not the previously proposed supergene origin. The turquoise-forming fluids were characterized by the coexistence of two immiscible fluids of non-magmatic affinity (i.e., moderate to high-temperature and low-salinity aqueous fluid and pure CH4-N2 fluid formed by interaction with carbonaceous slates). The bluish green homogeneous turquoise in the metamorphic quartz-barite-turquoise veins evolved toward the turquoise-planerite solid solution series as the metal-leaching capability of the aqueous fluids decreased. [ABSTRACT FROM AUTHOR]

The document titled "Literature of Interest" is a compilation of recent articles and studies related to gemology and mineralogy. It covers a wide range of topics including the characteristics and origins of gemstones, spectroscopic analysis of minerals, and identification of raw materials and imitations. The document also includes articles on cultural heritage, such as the identification of archaeological glyptics and the historical significance of gemstone mines. Additionally, there are articles on diamonds, gem localities, and various other topics related to gemstones and minerals. The document concludes with sections on organic/biogenic gems, news press articles, and compilations of images, gem news, and lab notes. [Extracted from the article]

'Fingerprint' identification is the key to turquoise provenance studies, but previous studies have met with limited success in China. Turquoises in China mainly occur in altered sedimentary rocks and are formed by weathering, leaching and sedimentation. This paper evaluates the potential for sedimentary environment sensitive elements to be used to distinguish between turquoise deposits in China. In this paper, the ratios of V/Mo, Ce/Ce*, Ni/Co, Sr/Ba, Tl/Ga, Li/Ba and V/Cr were calculated for turquoise of different origins. Our results show that these parameters when used alongside Ga concentration permit effective discrimination between turquoise sources in China. This approach brings to light a new means of analyzing trace element databases and an untapped wealth of information that can be used for future turquoise provenance studies. [ABSTRACT FROM AUTHOR]

Microsampling elemental analysis is widely used for gemstone and mineralogy traceability. Using laser ablation inductively coupled plasma mass spectrometry combined with chemometrics, the contents of 56 elements in turquoise samples from 5 distinct producing areas in 3 nations were measured. An origin identification model for turquoise samples from various producing areas was established through random forest importance analysis, principal component analysis, and linear discriminant analysis. When combined with random forest importance screening, the traceability efficiency of principal component analysis is significantly improved. Moreover, by taking 48 elements as characteristic variables and introducing them into the discriminant model, a Fisher discriminant model for identifying the origin of turquoise was successfully established. The effective element fingerprint information of turquoise species is closely related to the species origin, and the accuracy of cross-validation reaches 99.5%, demonstrating the feasibility of the proposed model for the identification of the origin of turquoise samples. [ABSTRACT FROM AUTHOR]

The museum collection includes the largest and most comprehensive collection of rough-and-cut samples from turquoise mines around the world and is therefore an important reference library for the identification and comparison of turquoise specimens. A 25-kilogram nugget of Iranian turquoise gifted to the museum is particularly noteworthy, while nearby there is a portrait of a Croatian duke wearing a belt and necklace, both richly inlayed with turquoise. THE TURQUOISE MUSEUM in Albuquerque, New Mexico, is a family-owned and -operated institution committed to promoting greater understanding and appreciation of turquoise. [Extracted from the article]

Turquoise is a well-known gemstone that has been used in artefacts across many cultures throughout history. However, due to its porosity it is often treated to enhance its color and beauty. One appreciated treatment is the patented Zachery process, although its details remain publicly undisclosed. Previous studies indicated that only a high K content distinguishes Zachery-treated from natural turquoises. In this study, natural and Zachery-treated turquoise samples from the famous Kingman mine, Arizona, USA, were analysed by means a multi-methodological approach, including standard gemological testing, electron microprobe (EMPA), scanning electron microscope with energy dispersive spectrometer (SEM–EDS) and X-ray diffraction (XRD), Fourier-Transform InfraRed (FTIR), non-destructive External Reflection-Fourier-Transform InfraRed (ER-FTIR) spectroscopy and X-ray computed microtomography (μCT). The results revealed new chemical–mineralogical and microstructural features that distinguish the Zackery-treated from the natural turquoise: higher specific gravity and lower porosity, associated with high and uneven concentrations of Cu, K and Na, the occurrence of tenorite (CuO), the presence and extension of reaction edges in the entire volume are distinctive of treated samples. Moreover, Cu-rich seeds and feldspar crystals may be interpreted as additional components used during the treatment. The hypothesis is that the Zachery treatment induces the re-crystallization of a new turquoise-like phase, which differs from the natural one from a chemical and microstructural point of view. [ABSTRACT FROM AUTHOR]

Planerite, aheylite and faustite are minerals of the turquoise group. They were found in samples from the Chala deposit, Spahievo Ore Field. The samples consist of a small crystalline mass of the investigated mineral phases among quartz. Single spherulites up to 2 mm in size and aggregates of spherulites with a yellowish-greenish color are observed in small cavities. Transparent, colorless wavellite crystals and aggregates are crystallized on spherulites. For the first time in Bulgaria, the presence of aheylite was established. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Social Sciences Institute / Sosyal Bilimler Enstitüsü Dergisi is the property of Bingol University / Rectorate and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Petrologica et Mineralogica / Yanshi Kuangwuxue Zazhi is the property of Acta Petrologica et Mineralogica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Turquoise from Hami, Xinjiang, China, is an attractive gem material of good quality and nice colour. The deposit shows good potential, although mining is currently forbidden due to the archaeological significance of the area. The turquoise typically forms in veins or as nodules with various associated minerals (i.e. woodhouseite, dawsonite, calcite, alunite, gypsum and quartz, as identified by X-ray diffraction analysis). The main chemical impurities in the turquoise are Si, Sr, Cr and V. Scanning electron microscopy revealed that the turquoise crystallites commonly form compact aggregates with an imbricate arrangement, resulting in low porosity and a dense structure. The relatively high hardness of a brownish yellow variety of Hami turquoise was found to be closely related to the presence of quartz impurities. Some blue-to-green specimens display a distinctive 'raindrop' appearance due to the presence of fluorapatite, similar to turquoise from China's Hubei Province. [ABSTRACT FROM AUTHOR]

In the Neolithic Gavà mines, variscite and turquoise were exploited for ornaments manufacturing, although some prospective pits and tunnels were dug on other similar greenish minerals such as smectite or kandite. A 3D study of the distribution of mineral phases allows us to determine the parameters involved in variscite colours. Methods are comprised of quantitative colourimetry, thin section petrography, SEM-BSE-EDS, EMPA, XRD, Raman spectroscopy, and 57Fe Mössbauer spectrometry. Mapping of the mines indicates that colour is not directly dependent on depth. Although variscite from Gavà is poor in Cr3+ and V+3 compared with gemmy variscite from other localities, the deep green samples content has the highest values of Cr3+. In the case of cryptocrystalline mixtures with jarosite, phosphosiderite, or goethite, variscite tends to acquire a greenish brown to olivaceous hue. If white minerals such as quartz, kandite, crandallite, or alunite are involved in the mixtures, variscite and turquoise colours become paler. [ABSTRACT FROM AUTHOR]

Copper mineral medicines are widely used in clinical practice. There are 11 kinds of copper-bearing minerals used in the treatment of diseases in Tibetan medicine: bjarosite, silane malachite, brass, malachite, turquoise, bronze, ring copper, turquoise, red copper, chlorite, copper. In this paper, the main components, processing methods, clinical uses and modern pharmacological research progress of copper-bearing minerals in Tibetan medicines were summarized by referring to the Tibetan medicine books, modern ethnic medicine monographs, current quality standards and recent literature, providing reference for the sustainable development and efective utilization of Tibetan medicine resources. [ABSTRACT FROM AUTHOR]

New materials in 85 configurations were tested relative to standard fabric Nzi traps to improve catches of tabanids based on artificial visual cues that mimic those used in nature for locating hosts or water. Colour‐fast synthetic fabrics and photo‐selective horticultural mesh were tested to facilitate insecticide impregnation and for improved durability. Many plastics were explored to document how flies react to polarized and visible vs. ultraviolet light. Lastly, sticky horizontal, linearly polarizing ground‐level shiny plastic targets were tested for capturing water‐seeking tabanids relative to traps and vertical fabric targets. Based on the capture of 281 786 female Tabanidae (Tabanus Linnaeus, Hybomitra Enderlein, Chrysops Meigen), four alternative formats provided higher catches and/or durability. They were substituting: (1) phthalogen turquoise for phthalogen blue, (2) solution‐dyed fabrics for blue and black cotton, (3) clear/white horticultural mesh for mosquito netting, and (4) clear, reflective plastic for some or all netting. A Sunbrella/BioNet fabric trap (portable) and a blue‐black Plexiglas®/netting trap (fixed applications) consistently performed best (1.5–3 × higher catches). Ground‐level targets captured many male and gravid female Hybomitra but were ineffective for Tabanus. Traps and vertical fabric or transparent sticky targets captured mainly unfed females. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Economic Geology is the property of Ferdowsi University of Mashhad Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Larq Journal for Philosophy, Linguistics & Social Sciences is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Oriental Studies (Al-Farabi Kazakh National University) / Kazahskij Nacional'nyj Universitet Imeni Al'-Farabi Vestnik Seriâ Vostokovedeniâ is the property of Al-Farabi Kazakh National University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The book of hours examined for this study is an illuminated Renaissance masterpiece: a small prayer book bound in enamelled gold and gemstones that was bought in 1538 by King Francis I of France as a probable gift for his niece. In 2018, it was acquired by the Louvre Museum (Paris, France) from S. J. Phillips Ltd in London, and its nearly complete history is documented here. A first gemmological analysis of the stones adorning the book was conducted on site at the Louvre in 2020. The gems consist of carnelian (two intaglios and eight cameos), rubies (27 polished pieces), turquoise (24 cabochons) and rhodolite (one faceted stone in the book's clasp that has been described as tourmaline since 1942). We suggest that most of the rubies were mined from the Mogok area of Burma (now Myanmar). Based on historical considerations, the turquoise could have originated from Persia or possibly Uzbekistan, and the carnelian from either India or Saxony. The faceted rhodolite could have originated from India or Sri Lanka, and was most likely added to the clasp in more recent times, possibly between 1842 and 1884. [ABSTRACT FROM AUTHOR]

Mining operations determine a long-term production schedule, often to maximize net present value. For a time horizon of between years and decades, optimization models seek the extraction times--with monthly or yearly fidelity--of three-dimensional, notional blocks of ore and waste within a deposit to satisfy spatial precedence constraints, as well as resource constraints on the amount of material extracted and sent to the mill. With algorithmic advances, as well as those in mine planning software and in hardware, we are able to solve instances with a decade-long horizon at daily fidelity. The resulting objective, repeatable, and defensible schedules inform production and maintenance supervisory decisions based on resource availability, that is, loaders, shovels, haul trucks, and mineral processors. We implement our solutions at the Turquoise Ridge underground gold mine in Nevada, United States. These solutions indicate more than a 2% increase in total ounces extracted over a decade while decreasing development footage by as much as 11% over the same time horizon. Furthermore, we are able to incorporate rules governing a shared resource and to evaluate binding versus nonbinding capacity constraints. [ABSTRACT FROM AUTHOR]

This paper proposes a revised interpretation of the recurring sequence ḏ t b ṯ n m ṯ found in the early alphabetic inscriptions from Serabit el-Khadem, an Egyptian turquoise mining facility located in the Sinai Peninsula. I argue that this sequence combines with the well-known phrase m(ʾ)hb(b)ʿlt "beloved of the Lady" in Sinai 351, 353, 360, and 361 to form a memorial formula meaning "Beloved of the Lady are those who tell people about Māṯ." It thus expresses a sentiment similar to contemporaneous Egyptian inscriptions from Serabit el-Khadem: the author of the inscriptions—in this case Māṯ—asks the reader to perform some action on his behalf. In return, he assures the reader that they will be beloved of the Lady (i.e., Hathor, the patron goddess of the mining district). [ABSTRACT FROM AUTHOR]

We use the introduction of two multilateral trading facilities (MTFs) to examine the impact of market fragmentation on commonality in liquidity. We find that the introduction of MTFs following the Markets in Financial Instruments Directive increases the comovement of stocks' liquidity with MTF liquidity, while the comovement with the home market liquidity generally decreases. We also find that the higher the MTF trading volume or the number of MTFs trading a stock, the stronger the effect. Further, we find that the commonality in liquidity remains unchanged for a matched control sample of stocks that do not trade on MTFs. [ABSTRACT FROM AUTHOR]

In this work, flexible electroluminescent devices (FELDs) are demonstrated using environmentally‐friendly cellulose nanocrystal (CNC) substrates with a silver nanowire conductive network. The CNC sheets with drop‐casted silver nanowires act as highly transparent conductive electrodes for an electroluminescent layer (a phosphorescent ink containing Cu/Br‐doped ZnS microparticles). This phosphorescent device requires operating voltages as low as 7 V and achieves high luminance of up to 43 Cd m−2 (at 50 V). Furthermore, through impregnating the CNC host material with Rhodamine 6G or Thiazol Yellow G, different emission colors are achieved: blue, turquoise, green, and purple light emission having a broad (400–650 nm) luminescence spectrum are obtained. This device, which uses earth‐abundant, cost‐effective, and recyclable materials, is envisioned to lead to advancements in the areas of electronics and lighting technology. [ABSTRACT FROM AUTHOR]

Copyright of Revista del Museo de Antropología is the property of Museo de Antropologia - IDACOR and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article focuses on artworks by Venaya J. Yazzie, which explore themes of resilience and cultural identity during the pandemic, emphasizing the symbolic use of colors like red and turquoise, as well as traditional Diné adornments, to convey messages of strength and hope.

Copyright of Ceramica is the property of Associacao Brasileira de Ceramica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

As novel blue pigment, various copper aluminum phosphate hydroxides imitated with Turquoise, CuAl6(PO4)4(OH)8•4H2O, were synthesised by heating the mixture of copper oxide, aluminum hydroxide, and phosphoric acid. Furthermore, the similar chemical compositions with Turquoise were also studied. The obtained powders were estimated with X-ray diffraction (XRD), Infrared (IR) spectra, ultraviolet–visible (UV–Vis.) reflectance spectra, and L*a*b* color space. The heating temperature and time, volume of water were studied in this process. Further, the other related compositions were also investigated. The obtained materials had the XRD peaks of CuAl6(PO4)4(OH)8•4H2O and CuO. The sample synthesised at 700 °C (3 h, 10 mL) indicated higher lightness than those prepared at other temperatures. [ABSTRACT FROM AUTHOR]

Copyright of Rock & Mineral Analysis is the property of Editorial Board of Rock & Mineral Analysis and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Ordovician Turquoise Bluff Slate in northeastern Tasmania is a 2 km-thick sequence of deep-marine siliceous black slates. It is dominated by meta-siltstones with bimodal grainsize distributions typical of turbidite TE-1 and TE-2 facies. The slates have high SiO2 indicating they are hemipelagites. The high Ba and V indicate they were deposited in an anoxic environment associated with high oceanic productivity. All these features are common in muddy turbidites. U-Th-Pb dating of detrital monazite and authigenic xenotime in the slates supports previous evidence that the dominant cleavage, in this unit, formed during the Benambran Orogeny. The whole-rock composition of the slates is similar to black slates in the Adaminaby Group, NSW. A review of Paleozoic whole-rock compositions from the Lachlan Orogen confirms they all have trace element contents similar to average Australian shale. However, there are subtle differences in composition. The Turquoise Bluff Slate and other Mathinna Supergroup rocks from the Eastern Tasmania Terrane have higher average Cr content than similar age turbidites from Victoria and NSW. This probably reflects a small contribution from Tasmania Cambrian ultramafic rocks in the provenance. If this were correct, northeastern Tasmania was closer to western Tasmania in the Paleozoic than other provinces of the Lachlan Orogen, southeastern Australia. Other subtle features of the whole-rock composition of Paleozoic sedimentary rocks from the Lachlan Orogen indicate it may be possible to recognise provincial variations in composition that will provide new constraints on tectonic models of southeastern Australia. [ABSTRACT FROM AUTHOR]

Copyright of Documenta Praehistorica is the property of Documenta Praehistorica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Egyptians probably drew their first supplies of copper as native metal and step by step from the abundant malachite stones found in south Sinai region and in the hills near Red Sea in the eastern desert. There was integrated between the mines of copper and the mines of turquoise in the literature studies of south Sinai, especially in wadi El-Maghara, Wadi El-Nasib, Wadi Kharag and serabit El-Khadim, so this study tries to clear this point and determine exactly the mines of copper and the mines of turquoise. The study aims to investigate the source zones for copper in south Sinai, Egypt during the pharaonic ages, to determine the extent of a manufacturing centre and its position and to know the systems of metallurgical works, fire places, furnaces, etc. To achieve that the study had two main aspects: first, a serious survey to investigate of the mines of south Sinai was a cured; several different mining features were randomly chosen for excavation such as open cisterns, plates and galleries, collected every small things and fine details of the mining technology used at these sites. Secondly: Careful investigations by a serial of different analytical techniques for Ore and slag samples from the selected mines have been applied; the obtained information can be married up and exploited to determine exactly the main activity for each site. [ABSTRACT FROM AUTHOR]