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Vivianite On Cryptomelane

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Vivianite On Cryptomelane

The Nature Company
Classic Locality

Description Tabs

Description
Locality: 
Kerch Peninsula, Crimea, Ukraine
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 5.7 × 3 cm
Description

Very glossy black vivianite crystals on botryoidal, deep black cryptomelane. Comes in the original box of The Nature Company.

Mineral Data
What's on the rock

Vivianite

Formula: 
Fe2+3(PO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Type Locality: 
Wheal Kind (Wheal Kine), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK

Cryptomelane

Formula: 
K(Mn4+7Mn3+)O16
Strunz: 
4.DK.05a
Crystal System: 
Tetragonal
Hardness: 
5.0 - 6.5
Type Locality: 
Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA

Seller Information

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