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Shigaite
Shigaite

Faustite
Faustite



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Shigaite
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Faustite

Shigaite and Faustite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4
 
-
-
-
2.9
Conchoidal
{???} Indistinct
4.5
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Shigaite and Faustite Chemical Formula

While comparing Shigaite and Faustite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Shigaite and Faustite chemical formula.

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Shigaite and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shigaite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite Vs Faustite during the identification of gemstone. Specific gravity of Shigaite is whereas that of Faustite is .