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Lautenthalite & Langite

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HEF966850

Lautenthalite & Langite

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Description
Locality: 
Meadowfoot Smelter Slag Locality, Wanlockhead, Dumfries & Galloway, Scotland, United Kingdom
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 1.1 cm
Description

Green crytsals of lautenthalite on langite

Mineral Data
What's on the rock

Lautenthalite

Formula: 
PbCu4(SO4)2(OH)6·3H2O
Strunz: 
7.DE.70
Hardness: 
2.5
Streak: 
White
Type Locality: 
Lautenthal smelter (Silberhütte smelter) slag locality, Lautenthal, Harz, Lower Saxony, Germany

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

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