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Langite & Leadhillite

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SHS177346

Langite & Leadhillite

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Description
Locality: 
Meadowfoot Smelter Slag Locality, Wanlockhead, Dumfries & Galloway, Scotland, United Kingdom
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 0.8 × 1 cm
Description

Langite and leadhillite 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

Leadhillite

Formula: 
Pb4(CO3)2(SO4)(OH)2
Strunz: 
5.BF.40
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Susanna Mine (Glennery Scar Vein; Susanna Vein [Scar Vein]; Portobello Vein; Humby Vein; Lead Vein), Leadhills, South Lanarkshire, Strathclyde (Lanarkshire), Scotland, UK