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Autunite

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TPX736006

Autunite

Radioactive

Description Tabs

Description
Locality: 
Pinhal do Souto Mine, Tragos, Mangualde, Viseu District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.3 × 5.7 × 4.4 cm
Weight: 
175.00gr
Description

Very interesting specimen of autunite on quartz matrix, with small traces of other minerals, sabugalite, dewindtite, etc. These specimens were collected by Adonis, a Portuguese merchant, more than 30 years ago, today this field no longer gives specimens.

The sample is highly fluorescent under ultraviolet light, as you can see in one of the photos.

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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