Kyawthuite
Kyawthuite is a rare mineral with formula BiSbO4. It is a natural bismuth antimonate, in which bismuth has oxidation state +3, and antimony oxidation state +5.
Description
Kyawthuite is monoclinic, with space group, and is isostructural with clinocervantite, its trivalent-antimony-analogue. Kyawthuite is an antimony-analogue of clinobisvanite.Occurrence
Kyawthuite was discovered in the vicinity of Mogok in Myanmar, an area famous for its variety of gemstone minerals, in 2010 and was subsequently identified as being a new specimen by Dr. Kyaw Thu. The International Mineralogical Association officially recognised kyawthuite as a new mineral in 2015.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.