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Autunite

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JZM767447

Autunite

Rare Mineral

Description Tabs

Description
Locality: 
Daybreak Mine, Spokane County, Washington, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.7 × 2.5 cm
Weight: 
124.00gr
Description

Rich specimen of autunite from the famous Daybreak Mine. The whole specimen consists of autunite crystals, with minor fragments of matrix all around. One side hosts a vug with lustrous fan-like yellow-green intergrown aggregates, the other side is completely covered with rather matt crystals.

Mineral Data
What's on the rock

Autunite

Formula: 
Ca(UO2)2(PO4)2·11H2O
Strunz: 
8.EB.05
Crystal System: 
Tetragonal
Hardness: 
2.0 - 2.5
Type Locality: 
Saint-Symphorien-de-Marmagne, Montcenis, Saône-et-Loire, Burgundy, France

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