Azoproite
Appearance
Azoproite | |
---|---|
![]() Rare azoproite crystals | |
General | |
Category | Borate mineral |
Formula (repeating unit) | (Mg,Fe2+ ) 2(Fe3+ ,Ti,Mg)(BO 3)O 2 |
IMA symbol | Azo[1] |
Crystal system | Orthorhombic |
Identification | |
Color | Black |
Cleavage | Distinct/Good Good on (010), less good on (001) |
Fracture | Conchoidal |
Tenacity | Brittle |
Mohs scale hardness | 5.5 |
Luster | Adamantine |
References | [2] |
Azoproite is a rare manganese iron borate mineral with the chemical formula (Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2. It was first identified near Lake Baikal, Russia. It was named after the Association pour l'Etude Géologique des Zones Profondes de l'Ecorce Terrestre, whose acronym is AZOPRO in Russian.[2]
References
- ^ 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 Azoproite Archived 2016-12-01 at the Wayback Machine on mindat.org
External links
- Azoproite data sheet
- Azoproite on the Handbook of Mineralogy