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Sabugalite & Autunite

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SER132638

Sabugalite & Autunite

Description Tabs

Description
Locality: 
Arcu su Linnarbu, Capoterra, Cagliari Province, Sardinia, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.9 × 4.5 × 1.5 cm
Description

A limonitic matrix well covered by yellow sabugalite crystals and minor autunite

Mineral Data
What's on the rock

Sabugalite

Formula: 
HAl(UO2)4(PO4)4·16H2O
Strunz: 
8.EB.55
Hardness: 
2.5
Colour: 
Yellow
Type Locality: 
Bica Mine, Quarta-Feira, Sortelha, Sabugal, Guarda District, Portugal

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