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Cumengeite & Laurionite

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SCH93977

Cumengeite & Laurionite

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Description
Locality: 
Lautenthal, Goslar, Lower Saxony, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 1.8 cm
Description

Very pretty bright blue octahedral cumengeite in vugs with colourless transparent laurionite. 

Mineral Data
What's on the rock

Cumengeite

Formula: 
Pb21Cu20Cl42(OH)40·6H2O
Strunz: 
3.DB.20
Crystal System: 
Tetragonal
Hardness: 
2.5
Streak: 
Sky-blue
Type Locality: 
Santa Rosalía (El Boleo), Boleo District, Mun. de Mulegé, Baja California Sur (BC Sur), Mexico

Laurionite

Formula: 
PbCl(OH)
Strunz: 
3.DC.05
Hardness: 
3.0 - 3.5
Type Locality: 
Lavrion District Mines, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece
schani

Seller Information

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