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Galena Psm Jordanite & Cadmian Wurtzite

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PFK743874

Galena Psm Jordanite & Cadmian Wurtzite

Description Tabs

Description
Locality: 
Agios Philippos Mine, Kirki, Evros, East Macedonia and Thrace, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 4 × 2.9 cm
Description

A fine rarity from this exhausted, remote locality. Well formed crystals of galena that has replaced Jordanite with cadmium-rich wurtzite crystals at the back of the specimen. This is the best example of pseudomorphed jordanite that I have seen from the locality.

Mineral Data
What's on the rock

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Jordanite

Formula: 
Pb14(As,Sb)6S23
Strunz: 
2.JB.30a
Hardness: 
3.0
Streak: 
Black
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Cadmian Wurtzite

Variety Of: 

Wurtzite

Formula: 
(Zn,Fe)S
Strunz: 
2.CB.45
Hardness: 
3.5 - 4.0
Formula: 
(Zn0.62Cd0.38)S

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