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Andersonite & Schröckingerite

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UVM598361

Andersonite & Schröckingerite

Radioactive

Description Tabs

Description
Locality: 
D Day #2 Mine, Thompsons District, Grand County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 2.8 × 1 cm
Description

Minute pseudocubic crystals of andersonite, some of which is overgrowing a bit of schrockingerite.   The overview photographs are taken in incandescent, LED, and longwave U.V. to show how the fluorescence differs under different lighting.   These specimens truly glow in the sunlight.  

Mineral Data
What's on the rock

Andersonite

Formula: 
Na2Ca(UO2)(CO3)3·6H2O
Strunz: 
5.ED.30
Crystal System: 
Trigonal
Hardness: 
2.5
Type Locality: 
Hillside Mine (Happy Jack MS 920 claim; Camp MS 919 claim; Seven Stars MS 916 claim), Bozarth Mesa, Bagdad, Eureka District, Yavapai Co., Arizona, USA

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

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