Braunite - angew. Mineralogie

Braunite
IV - Oxides

Braunite

`Name`		`Braunite`
`Chemistry`		`Mn₇[O₈\|SiO₄]`
`Hardness`		`6 - 6.5`
`Lustre`		`greasy metallic`
`Colour`		`iron black to brownish black`
`Streak`		`black, brownish grey black`
`Density [g/cm³]`		`4.7 - 4.9`
`Crystal habit`		`tetragonal, crystals often small, similar to octahedrons`
`Cleavage, Fracture`		`fracture uneven`
`other characteristics and occurrences`		`massive, grained aggregates, metamorph as well as metasomatic in limestones and dolomites, could be classified among the silictaes as well`

© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst

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