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Faustite
Faustite

Golden Beryl
Golden Beryl



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Faustite
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Golden Beryl
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.9
Conchoidal
{???} Indistinct
4.5
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.6-2.8
-
3,1 basal
7.5-8.0
Be3Al2SiO6