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Bayleyite & Andersonite

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UVM640108

Bayleyite & Andersonite

Radioactive

Description Tabs

Description
Locality: 
D Day #1 Mine, Thompsons District, Grand County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 1.5 × 0.7 cm
Description

Beautiful yellow sprays of bayleyite with pale yellow pseudocubic andersonite on matrix.   The andersonite is highly fluorescent, even showing a marked glow in the sunlight or under certain LED lights.   

Mineral Data
What's on the rock

Bayleyite

Formula: 
Mg2(UO2)(CO3)3·18H2O
Strunz: 
5.ED.05
Crystal System: 
Monoclinic
Hardness: 
0.0
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

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

Seller Information

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