Brezinaite

Brezinaite
General
Category	Sulfide mineral
Formula (repeating unit)	Cr3S4
IMA symbol	Bzn[1]
Strunz classification	2.DA.15
Dana classification	02.10.02.02
Crystal system	Monoclinic
Crystal class	Prismatic (2/m) (same H-M symbol)
Space group	I2/m
Identification
Color	Brownish gray, gray
Mohs scale hardness	3.5-4.5
Luster	Metallic - dull
Diaphaneity	Opaque
Specific gravity	4.12
References	[2][3]

Brezinaite, discovered in 1969, is a rare mineral composed of chromium and sulfur. It is found in meteorites, such as the Tucson Ring meteorite (Irwin-Ainsa meteorite), its type locality. It was also found in the New Baltimore meteorite and the Sikhote-Alin meteorite. Brezinaite was named in honour of Aristides Brezina (1848–1909), a past director of the Mineralogy-Petrology Section of the Natural History Museum, Vienna, Austria.[2]

References

1. 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.
2. Brezinaite on Mindat.org
3. Brezinaite data on Webmineral