Hausmannite | #Geology #GeologyPage Chemical Formula: - TopicsExpress


Hausmannite | #Geology #GeologyPage Chemical Formula: Mn2+Mn23+O4 Locality: Ilmenau and nearby at Orenstock, in Thuringia, Germany. Name Origin: Named after the German mineralogist, J. F. L. Hausmann (1782-1859). Hausmannite is a complex oxide of manganese containing both di- and tri-valent manganese. The formula can be represented as Mn2+Mn23+O4. It belongs to the spinel group and forms tetragonal crystals. Hausmannite is a brown to black metallic mineral with Mohs hardness of 5.5 and a specific gravity of 4.8. Read more : geologypage/2014/04/hausmannite.html Geology Page geologypage
Posted on: Fri, 09 Jan 2015 08:00:00 +0000

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