Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Variscite Dufrénite & Autunite

Views:
Watches:
SER727263

Variscite Dufrénite & Autunite

Description Tabs

Description
Locality: 
Eduardo Claim, Conselheiro Pena, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3 × 2.5 cm
Description

a large vug featuring red also double terminated variscite crystals with green balls of dufrenite and yellow autunite

Mineral Data
What's on the rock

Variscite

Formula: 
AlPO4·2H2O
Strunz: 
8.CD.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Meßbach Quarry, Meßbach, Plauen, Vogtland, Saxony, Germany

Dufrénite

Formula: 
Ca0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O
Strunz: 
8.DK.15
Hardness: 
3.5 - 4.5
Streak: 
Green
Type Locality: 
Anglar, Haute-Vienne, Limousin, France

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