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Cumengeite & Botallackite

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SHS529530

Cumengeite & Botallackite

Description Tabs

Description
Locality: 
Herzog Julius Smelter Slag Locality, Astfeld, Goslar, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.7 × 0.7 × 0.4 cm
Description

Nice cummengeite and botallackite on matrix

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

Botallackite

Formula: 
Cu2(OH)3Cl
Strunz: 
3.DA.10b
Hardness: 
0.0
Type Locality: 
Wheal Cock, Botallack Mine, Botallack, St Just, St Just District, Cornwall, England, UK