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Autunite & Torbernite

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TPX770562

Autunite & Torbernite

Radioactive

Description Tabs

Description
Locality: 
Pinhal do Souto Mine, Tragos, Mangualde, Viseu District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 3.8 × 4.6 cm
Weight: 
138.00gr
Description

Very interesting specimen of autunite and torbernite crystals on a smoky quartz matrix, possibly other rare minerals are also present.  from this little know Portuguese site nowadays closed, Nowaday is very rare find samples of this mine in the market. This old specimen was collected by Adonis, a mineral dealer, 30 years ago.

All these pieces are protected by an acrylic resin bath (Paraloid) to prevent the inhalation of mineral dust. If you wish, the paraloid bath can be removed simply by dipping the piece in acetone.

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

Torbernite

Formula: 
Cu(UO2)2(PO4)2·12H2O
Strunz: 
8.EB.05
Crystal System: 
Tetragonal
Hardness: 
2.0 - 2.5
Type Locality: 
Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany

Seller Information

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