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Calcite On Cryptomelane

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PJM130650

Calcite On Cryptomelane

Description Tabs

Description
Locality: 
Lorena Mine, Cloncurry Shire, Queensland, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.3 × 5.6 × 3.2 cm
Description

A large open cavity in massive brown calcite is lined with stalactitic masses of cryptomelane that has been covered with off white to tan coloured calcite crystals

Mineral Data
What's on the rock

Calcite

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

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
Earthstones Australia

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

All goods must be paid for prior to shipping, all bids are binding.