Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Johannite & Schröckingerite

Views:
Watches:
MNR567143

Johannite & Schröckingerite

Rare mineral
Radioactive

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.8 × 1.2 cm
Description

Rare grass-green johannite crystal spheres and accumulations with yellow shrockingerite. Both minerals are nicely fluorescent. Possibly other mineral growing on schroeckingerite is presented on the sample. It's highly yellow fluorescent under SW (pictures #3,7,8).

Obtained from Dr. Jan Hloušek.

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

Schröckingerite

Formula: 
NaCa3(UO2)(CO3)3(SO4)F·10H2O
Strunz: 
5.EG.05
Crystal System: 
Orthorhombic
Hardness: 
2.5
Type Locality: 
Svornost Mine (Einigkeit Mine), Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic