Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Cryptomelane

Views:
Watches:
GND40730

Cryptomelane

Description Tabs

Description
Locality: 
Iron Baron Mine, Middleback Range, Eyre Peninsula, South Australia, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 2.8 × 1.6 cm
Description

Black stalactitic cryptomelane free of matrix from one of the iron mines in current production on the Eyre Peninsula of South Australia and situated in close proximity to the better known Iron Monarch deposit.

Mineral Data
What's on the rock

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
Gondwana Minerals