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Heliophyllite

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JYJ200497

Heliophyllite

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2.6 × 1.5 cm
Description

Yellow to beige coloured aggregates of heliophyllite.

Mineral Data
What's on the rock

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