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Turquoise

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ATM1085235

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Description
Locality: 
Gunheath Pit, St Austell, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.4 × 6.07 × 3.4 cm
Description

Crystallised druse of Turquoise on Turquoise Kaolin matrix.

Pale Blue micro crystals from Cornish Clay Pit.

Mineral Data
What's on the rock

Turquoise

Formula: 
Cu(Al,Fe3+)6(PO4)4(OH)8·4H2O
Strunz: 
8.DD.15
Crystal System: 
Triclinic
Hardness: 
5.0 - 6.0

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