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Chrysocolla

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KAT685753

Chrysocolla

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Description
Locality: 
St Andreasberg, Harz Mountains, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.4 × 3.5 × 1.7 cm
Description

nice blue botryoidal chrysocolla on quartz

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

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