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Langite & Cuprite

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SHS143871

Langite & Cuprite

Description Tabs

Description
Locality: 
Herzog Julius Smelter Slag Locality, Astfeld, Goslar, Lower Saxony, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1.1 × 0.7 cm
Description

Langite and cuprite on matrix

Mineral Data
What's on the rock

Langite

Formula: 
Cu4(SO4)(OH)6·2H2O
Strunz: 
7.DD.10
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Type Locality: 
Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath, St Austell District, Cornwall, England, UK

Cuprite

Formula: 
Cu2O
Strunz: 
4.AA.10
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0