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Jet
Jet

Ettringite
Ettringite



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Jet
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Ettringite

Jet and Ettringite Physical Properties

Jet
Jet
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.19-1.35
ConchoidalWalter Schumann
None
2.5-4
C
 
-
Partially soluble in water
-
1.77
-
Perfect on {10 1 0}
2-2.5
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Jet and Ettringite Chemical Formula

While comparing Jet and Ettringite 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 Jet and Ettringite chemical formula.

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Jet and Ettringite Specific Gravity

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