Feodosiyite Explained
| Feodosiyite |
| Category: | Halide mineral |
| Formula: | Cu11Mg2Cl18(OH)8•16H2O |
| Imasymbol: | Fdy[1] |
| System: | Monoclinic |
| Class: | Prismatic (2/m)
(same H-M symbol) |
| Symmetry: | P21/c |
| Unit Cell: | a = 12.90, b = 16.42
c = 11.96 [Å]; β = 113.69° (approximated) |
Feodosiyite is a very rare chloride mineral, just recently approved,[2] with the formula Cu11Mg2Cl18(OH)8•16H2O. Its structure is unique.[3] Feodosiyite comes from the Tolbachik volcano, famous for many rare fumarolic minerals.[4] Chemically similar minerals, chlorides containing both copper and magnesium, include haydeeite, paratacamite-(Mg) and tondiite.[5]
Notes and References
- Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
- Web site: Feodosiyite: Feodosiyite mineral information and data . Mindat.org . 2016-03-04.
- Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Britvin, S.N., Sidorov, E.G., and Pushcharovsky, D.Y.,2015. Feodosiyite, IMA 2015-063. CNMNC Newsletter No. 28, December 2015, 1860; Mineralogical Magazine 79, 1859–1864
- Web site: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia - Mindat.org . Mindat.org . 2016-03-12.
- Web site: Haydeeite: Haydeeite mineral information and data . Mindat.org . 2016-03-12.
