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Ettringite
Ettringite

Sapphirine
Sapphirine



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Ettringite
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Sapphirine

Ettringite and Sapphirine Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
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)
 
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-
-
3.40-3.58
Conchoidal, Uneven
{010} Perfect
7.5
(Al,Mg) 8(Al,Si) 6O 20Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Ettringite and Sapphirine Chemical Formula

While comparing Ettringite and Sapphirine 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 Ettringite and Sapphirine chemical formula.

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Ettringite and Sapphirine Specific Gravity

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