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Johannite

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ADX608012

Johannite

Radioactive

Description Tabs

Description
Locality: 
Geevor Mine, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 0.9 × 0.4 cm
Description

Many yellow-green platy crystals associated with bluish chalcanthite masses.

Mineral Data
What's on the rock

Johannite

Formula: 
Cu(UO2)2(SO4)2(OH)2·8H2O
Strunz: 
7.EB.05
Crystal System: 
Triclinic
Hardness: 
2.0 - 2.5
Colour: 
Emerald-green
Type Locality: 
Elias Mine, Jáchymov, Krušné Hory, Karlovy Vary, Bohemia, Czech Republic
Davide Zaccaria

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

As a mineral collector, I consider the quality of specimens and the customer service very very important, so if for every reason you have a problem with the transaction, please let me know as soon as possible. If  your specimen is damaged upon delivery, send me some photos of the minerals, possibly within 1 week, and I'll refund the cost of the damaged items.