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0 item @ $0.00  

Todorokite

#BAC61726

Todorokite

#BAC61726
Availability
Sold
Size
3 x 1.5 x 1 cm - Thumbnail 
Formula
(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O (RRUFF)
Locality
Wessels mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa

Fibrous black Todorokite.

Todorokite

Formula
(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2
Crystal System
Monoclinic 
Crystal Habit
Nodular, Reniform, Aggregates 
Cleavage
Perfect, Perfect, None 
Luster
Metallic - Dull 
Color
brownish black, gray, grayish black, dark brown, black 
Streak
dark brown 
Class
Monoclinic - Prismatic 
Hardness
1.5 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection

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