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Laurionite & Gypsum

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SHS210947

Laurionite & Gypsum

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Description
Locality: 
Herzog Julius Hütte, Astfeld, Lower Saxony, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.3 × 1.2 cm
Description

 Laurionite and gypsum crystals on matrix

Mineral Data
What's on the rock

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

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.
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