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Calcioursilite

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GFM786836

Calcioursilite

Description Tabs

Description
Locality: 
Breitenbrunn, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.9 × 1.8 × 1.5 cm
Description

greenish-yellow wax-like crystal aggregates, next to yellow needle-like Uranophane on brown Quartz-Goethite matrix, very old newly examined samples, found around 1850

Mineral Data
What's on the rock

Calcioursilite

Formula: 
Ca4(UO2)4(Si2O5)5(OH)6·15H2O
Strunz: 
9.AK.35
Hardness: 
0.0
Type Locality: 
Oktyabr'skoye U Deposit, Kyzyltyube-Sai, Khodzhent (Leninabad), Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad), Tajikistan...