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Sphene
Sphene

Ettringite
Ettringite



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Sphene
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Ettringite

Sphene and Ettringite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Perfect
-9999
CaTiSiO5
 
-
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)

Sphene and Ettringite Chemical Formula

While comparing Sphene 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 Sphene and Ettringite chemical formula.

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Sphene and Ettringite Specific Gravity

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