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Calcite With Manganite Inclusions

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PCZ589230

Calcite With Manganite Inclusions

Description Tabs

Description
Locality: 
Pallaflat Mine, Cumbria, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 4 cm
Description

An unusual calcite specimen from a very rarely seen British locality. The crystals have numerous black/metalic inclusions of a dendritic nature. Mast likely manganite or some other manganese mineral as these have been reported from the mine (Mindat).

Mineral Data
What's on the rock

Calcite

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

Manganite

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