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Manganite Calcite & Wad

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CLB573475

Manganite Calcite & Wad

Type Locality

Description Tabs

Description
Locality: 
Ilfeld, Nordhausen, Harz, Thuringia, Germany
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 6.3 × 5.5 cm
Weight: 
639.00gr
Description

Big and heavy specimen with dark gray manganite crystals (type locality) with white calcite and gray blky masses of wad.

Mineral Data
What's on the rock

Manganite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.15
Hardness: 
4.0
Type Locality: 
Manganese deposit, Ilfeld, Nordhausen, Harz, Thuringia, Germany

Calcite

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

Wad

Mixture Of: 

Manganese Oxides

Hardness: 
1 - 6.5
Colour: 
Black, blue-black, brown
Streak: 
Black, bluish black, brownish black

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