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Hausmannite

#CL63993

Hausmannite

#CL63993
Availability
Sold
Size
6 x 3.5 x 3 cm - Sm Cabinet 
Formula
Mn2+Mn3+2O4 (RRUFF)
Locality
N'Chwaning mines, Kuruman, Northern Cape prov., South Africa

Hundreds of stacked, tetragonal-octahedral crystals to 3mm on edge all in parallel growth. Interesting to note that the sum total of all crystals forms a large octahedral crystal and in this case to 2cm along edge.

Hausmannite

Formula
Mn2+Mn3+2O4 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Pseudo Octohedral 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
brownish black, grayish 
Streak
dark reddish brown 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Uneven 
Hardness
5.5 

Data courtesy of Webmineral.

Collection
Chet S. Lemanski, Jr. Collection

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