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Thorikosite & Heliophyllite

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SHS172979

Thorikosite & Heliophyllite

Description Tabs

Description
Locality: 
Passa Limani Cove, Lavrion District, Attiki Prefecture, Greece
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.4 × 1.4 cm
Description

Thorikosite and heliophyllite on matrix

Mineral Data
What's on the rock

Thorikosite

Formula: 
Pb3Cl2(OH)(SbO3,AsO3)
Strunz: 
3.DC.40
Hardness: 
3.0
Type Locality: 
Thorikos Bay slag locality, Thorikos area, Lavrion District slag localities, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

Heliophyllite

Formula: 
Pb6As2O7Cl4
Strunz: 
3/D.10-110
Crystal System: 
Orthorhombic
Hardness: 
2
Type Locality: 
Långban, Filipstad, Värmland, Sweden
Dimorph Of: 

Ecdemite

Formula: 
Pb6Cl4(As2O7)
Strunz: 
3.DC.65
Hardness: 
2.5 - 3.0