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Fornacite Wulfenite & Pyromorphite

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GND27681

Fornacite Wulfenite & Pyromorphite

Rare Mineral

Description Tabs

Description
Locality: 
Whim Creek Mine, Pilbara, Western Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 3.7 cm
Description

An unusual combination of these lead minerals. The rare fornacite forms flaty yellow microcrystals covering a large portion of the limonitic matrix.

There are also thin tabular yellow wulfenite crystals and unusual stumpy yellow pyromorphite crystals that hollow at the terminations.

A microscope is needed to fully appreciated this specimen.

Mineral Data
What's on the rock

Fornacite

Formula: 
Pb2Cu(CrO4)(AsO4)(OH)
Strunz: 
7.FC.10
Hardness: 
2.0 - 3.0
Type Locality: 
Renéville Mine (Djoué Mines), Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)

Wulfenite

Formula: 
Pb(MoO4)
Strunz: 
7.GA.05
Crystal System: 
Tetragonal
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Bad Bleiberg, Bleiberg District, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria

Pyromorphite

Formula: 
Pb5(PO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Zschopau, Erzgebirge, Saxony, Germany
Gondwana Minerals