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Ettringite
Ettringite

Hibschite
Hibschite



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Ettringite
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Hibschite

Ettringite and Hibschite 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)
 
-
-
-
3.05-3.08
Uneven, Irregular, Conchoidal
None
6.5
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Ettringite and Hibschite Chemical Formula

While comparing Ettringite and Hibschite 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 Hibschite chemical formula.

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Ettringite and Hibschite Specific Gravity

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