Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Natrouranospinite

Views:
Watches:
JYJ631134

Natrouranospinite

Description Tabs

Description
Locality: 
Eureka Mine, Castell-estaó, La Torre de Cabdella, La Vall Fosca, Lleida, Catalonia, Spain
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 1 cm
Description

Natrouranospinite as yellow crystals on matrix. Often andersonite is confused with this material, but they can be distinguished easily by UV fluorescence: 

Andersonite shows much stronger blue fluorescence, while natrouranospinite is much weaker fluorescent with greenish tint. 

SEM-EDS confirmed, rare!

 

Mineral Data
What's on the rock

Natrouranospinite

Formula: 
(Na2,Ca)(UO2)2(AsO4)2·5H2O
Strunz: 
8.EB.15
Hardness: 
2.5
Type Locality: 
Bota-Burum U deposit, Lake Alakol (Lake Aaköl), Almaty Province (Almaty Oblysy; Almati Oblast'), Kazakhstan...