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Caryochroite, a Rare Mineral from the Titanosilicate Group: Crystal Structure, Crystal Chemistry, and Thermal Properties.
- Source :
-
Doklady Earth Sciences . Jun2023, Vol. 510 Issue 2, p415-421. 7p. - Publication Year :
- 2023
-
Abstract
- The crystal structure of the rare mineral caryochroite is determined for the first time using X-ray diffractometry and electron microdiffraction data. The new idealized crystal formula of the mineral is [Na(Sr0.5Ca0.5)Mg]3[Fe Mn()]10(Ti2Si12)O37(OH)14(Н2О)3. The parameters of the monoclinic unit cell refined by the least square method are a 16.550(3), b 5.281(2), c 24.25(3) Å, β 93.0°, Z = 2, space group P2/n. The crystal structure of caryochroite is a new type of Ti–Si lattice responsible for the large structural channels, which are able to enclose the exchange cations and a high amount of water components (OH groups and H2O molecules). [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYSTAL structure
*THERMAL properties
*LEAST squares
*SPACE groups
*UNIT cell
Subjects
Details
- Language :
- English
- ISSN :
- 1028334X
- Volume :
- 510
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Doklady Earth Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 164305132
- Full Text :
- https://doi.org/10.1134/S1028334X23600354