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Psilomelane

#PD33911
SOLD
Psilomelane from Hotazel mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa - PD33911
Psilomelane from Hotazel mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa - PD33911

Psilomelane

#PD33911
Availability
Sold
Size
4 x 6 x 2.5 cm - Sm Cabinet 
Formula
MnO (RRUFF)
Locality
Hotazel mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa

Crusty black botryoidal Psilomelane.

Psilomelane

Formula
(Ba,H2O)2Mn5O10 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Reniform, Mammillary 
Cleavage
None, None, None 
Luster
Sub Metallic 
Color
iron black, dark steel gray 
Streak
brownish black 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
5-6 

Data courtesy of Webmineral.

Collection
Phillips Collection
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