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Siderite with Lepidocroite

#40056

Siderite with Lepidocroite

#40056
Availability
Sold
Size
8 x 5 x 3 cm - Sm Cabinet 
Formula
FeCO3 (RRUFF)
Locality
Tsumeb mine, Tsumeb, Namibia
Tagged
carbonate

Beautiful golden yellow scalenohedral Siderite crystals to 5mm. These are superb and gorgeous crystals for a common mineral. Leave it to Tsumeb to provide us with such an occurence. Lining the cavity below the siderite are countless tiny deep red plates of Lepidocroite. The matrix I believe is Chalcocite - a black streak and sectile when scratched.

Siderite

Formula
FeCO3 
Crystal System
Trigonal 
Crystal Habit
Tabular, Massive, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
yellowish brown, brown, gray, yellowish gray, greenish gray 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5 

Data courtesy of Webmineral.

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