Kyawthuite
| Kyawthuite | |
|---|---|
| General | |
| Category | Oxide mineral |
| Formula (repeating unit) | BiSbO4 |
| IMA symbol | Kyw[1] |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | I2/c |
| Unit cell | a = 5.46 Å, b = 4.89 Å c = 11.85 Å, β = 101.20° (approximated); Z = 4 |
| Identification | |
| References | [2][3] |
Kyawthuite[needs IPA] is a rare mineral[2] with formula BiSbO4.[3] It is a natural bismuth antimonate, in which bismuth has oxidation state 3, and antimony oxidation state 5.
Description
[edit]Kyawthuite is monoclinic, with space group I2/c, and is isostructural with clinocervantite,[2] its trivalent-antimony-analogue.[4] Kyawthuite is an antimony-analogue of clinobisvanite.[5]
Occurrence
[edit]Kyawthuite was discovered in the vicinity of Mogok in Myanmar, an area famous for its variety of gemstone minerals.[6]
Only one 0.3 gram sample of the naturally occurring form of this mineral is documented, and it is stored at the Natural History Museum of Los Angeles County.[7] [8]
References
[edit]- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ a b c "Kyawthuite: Kyawthuite mineral information and data". Mindat.org. Retrieved 2016-03-04.
- ^ a b Kampf, A.R., Rossman, G.R. and Ma, C. (2015) Kyawthuite, IMA 2015-078. CNMNC Newsletter No. 28, December 2015, 1863; Mineralogical Magazine 79, 1859–1864
- ^ "Clinocervantite: Clinocervantite mineral information and data". Mindat.org. Retrieved 2016-03-09.
- ^ "Clinobisvanite: Clinobisvanite mineral information and data". Mindat.org. Retrieved 2016-03-09.
- ^ "Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Myanmar - Mindat.org". Mindat.org. Retrieved 2016-03-04.
- ^ Luntz, Stephen (26 January 2023). "There Is Only One Specimen Of The Rarest Mineral On Earth". IFLScience. Retrieved 30 January 2023.
- ^ Starr, Michelle, The World's Rarest Mineral Is So Rare It's Only Ever Been Found Once, Science Alert, November 29, 2024
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