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Keyite

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CR118296

Keyite

Rare Mineral
Type Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 0.9 × 0.7 cm
Description

Blue microcrystals of the very rare mineral keyite on tennantite ore matrix with minor cuprian adamite.

The piece is hard to photo but its actually quite rich with beautiful blue microcrystals under the microscope.

Ex Grosch collection.

Mineral Data
What's on the rock

Keyite

Formula: 
Cu2+3Zn4Cd2(AsO4)6·2H2O
Strunz: 
8.CA.50
Hardness: 
0.0
Colour: 
blue
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia