Metallic inclusions of the very rare Pt-Bi telluride mineral maslovite in a specimen that was probably analyzed by the former owner of the specimen. From: Rustenburg, Bojanala District, North West Province, South Africa. Ex Vandenbroucke Museum collection from Waregem, Belgium. — Photo: David Hospital · CC BY-SA 4.0
Maslovite
Maslovite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula PtBiTe.
It crystallizes in the cubic crystal system (space group Pa3). It is a member of the Pyrite structural group.
Key properties: Metallic. R: (400) —, (420) —, (440) 55.9, (460) 55.2, (480) 55.0, (500) 55.5, (520) 56.0, (540) 56.1, (560) 55.9 luster.
IMA symbol Mlo, IMA status: approved, named in 1978.
Found in galena-rich portions of massive cubanite-chalcopyrite and mooihoekite ores.
It is found associated with Altaite, sobolevskite, moncheite, michenerite, hessite, froodite, paolovite, tatyanaite, sperrylite, atokite–rustenbergite, galena, chalcopyrite, cubanite.
The mineral was named to honor Georgii Dmitrievich Maslov (1915–1968), geologist, one of the discoverers of the Talnakh deposits.