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0 item @ $0.00  

Manganite with Todorokite

#PD33913

Manganite with Todorokite

#PD33913
Availability
Sold
Size
4.5 x 5 x 2 cm - Miniature 
Formula
Mn3+O(OH) (RRUFF)
Locality
Hotazel mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa

Black Manganite crystals to 3mm with wedge-shaped terminations filling an open vug in black Mn matrix with a thin layer of gray matted Todorokite.

Manganite

Formula
Mn3+O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Pseudo Orthorhombic, Massive - Fibrous, Prismatic 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
black, gray, grayish black 
Streak
dark brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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