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Bayleyite & Andersonite

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UVM634862

Bayleyite & Andersonite

Radioactive

Description Tabs

Description
Locality: 
D Day #4 Mine, Thompsons District, Grand County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 3.6 × 1 cm
Description

Sharp yellow crystals of bayleyite on pale yellow pseudocubic andersonite.   The andersonite is highly fluorescent under U.V. light, and even shows pronounced daylight fluorescence.   

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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