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Wulfenite Var Chillagite With Cerussite

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LGM757470

Wulfenite Var Chillagite With Cerussite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Christmas Gift Mine, Chillagoe, Mareeba Shire, Queensland, Australia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 6 × 2.5 cm
Weight: 
82.00gr
Description

Specimen featuring countless intergrown, tiny tabular wulfenite crystals, accompanied by cerrussite and an unknown mineral in minute globular forms (see pic 1).

Comes with printed Krantz label dated to the 50's or 60's.

Chillagite (IMA 1999-038) is a tungsten-rich variety of wulfenite (compare also Stolzite-Wulfenite Series). It was proposed as a new mineral, but is considered a structural variant of wulfenite (unlike wulfenite, it crystallises in space group I4 due to W-Mo ordering; Jury et al., 2001). However, the ordering has been convincingly questioned later on.

Originally described from Christmas Gift Mine, Chillagoe, Chillagoe-Herberton District, Queensland, Australia.

Mineral Data
What's on the rock

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

Chillagite

Variety Of: 

Wulfenite

Formula: 
Pb(MoO4)
Strunz: 
7.GA.05
Hardness: 
2.5 - 3.0
Formula: 
Pb[(Mo,W)O4]
Hardness: 
0.0
Type Locality: 
Christmas Gift North Mine, Chillagoe, Queensland, Australia

Cerussite

Formula: 
PbCO3
Strunz: 
5.AB.15
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
3.0 - 3.5
Streak: 
White
Type Locality: 
Vicenza Province, Veneto, Italy

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