Category Oxide mineral Crystal system Monoclinic | Formula
(repeating unit) BiSbO4 Space group I2/c | |
Crystal class Prismatic (2/m)
(same H-M symbol) Unit cell a = 5.46, b = 4.89
c = 11.85 [Å], β = 101.20° (approximated); Z = 4 | ||
Kyawthuite is a rare mineral with a simple formula: Bi3+Sb5+O4. It is a natural bismuth antimonate. Kyawthuite is monoclinic, with space group I2/c, and is isostructural with clinocervantite, its trivalent-antimony-analogue. Kyawthuite is also an antimony-analogue of clinobisvanite. Kyawthuite was discovered in the vicinity of Mogok township in Myanmar, an area famous of various gemstone minerals.
References
Kyawthuite Wikipedia(Text) CC BY-SA