Azoproite | |
Category: | Borate mineral |
Imasymbol: | Azo[1] |
System: | Orthorhombic |
Color: | Black |
Cleavage: | Distinct/Good Good on (010), less good on (001) |
Fracture: | Conchoidal |
Tenacity: | Brittle |
Mohs: | 5.5 |
Luster: | Adamantine |
Azoproite is a rare manganese iron borate mineral with the chemical formula (Mg,Fe)(Fe,Ti,Mg)(BO)O. 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 French.[2]