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Star Sapphire
Star Sapphire

Faustite
Faustite



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Star Sapphire
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Faustite

Star Sapphire and Faustite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.
 
-
-
-
2.9
Conchoidal
{???} Indistinct
4.5
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Star Sapphire and Faustite Chemical Formula

While comparing Star Sapphire 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 Star Sapphire and Faustite chemical formula.

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Star Sapphire and Faustite Specific Gravity

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