Kyawthuite
| Kyawthuite | |
|---|---|
 Kyawthuite sample on display at the Natural History Museum of Los Angeles County | |
| General | |
| Category | Oxide mineral |
| Formula | 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 (/ˈtʃɜːrˌtuːaɪt/)[4] 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.[5] Kyawthuite is an antimony-analogue of clinobisvanite.[6]
Occurrence
[edit]Kyawthuite was discovered in the vicinity of Mogok in Myanmar, an area famous for its variety of gemstone minerals.[7]
Only one 0.3 gram sample of the naturally occurring form of this mineral is documented, and it is stored and on display at the Natural History Museum of Los Angeles County.[8] [9]
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
- ^ Julien Miquel (2024-03-29). How to Pronounce Kyawthuite (CORRECTLY!). Retrieved 2025-05-05 – via YouTube.
- ^ "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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