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Calcite & Lepidocrocite Psm Marcasite

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CLB106904

Calcite & Lepidocrocite Psm Marcasite

Description Tabs

Description
Locality: 
Latemar Group, Predazzo, Trento Province, Trentino-Alto Adige, Italy
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 4.5 × 3 cm
Description

I defined the lepidocrocite pseudomorph after comparing to mindat entry. The mineral is totally black and looks more like sphalerite to me. Should be analyzed. But the calcite crystals are fine enough.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Lepidocrocite

Formula: 
γ-Fe3+O(OH)
Strunz: 
4.FE.15
Crystal System: 
Orthorhombic
Hardness: 
5.0
Streak: 
Orange
Type Locality: 
Zlaté Hory (Zuckmantel), Olomouc Region, Moravia (Mähren; Maehren), Czech Republic

Marcasite

Formula: 
FeS2
Strunz: 
2.EB.10a
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5

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