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Ettringite
Ettringite

Shigaite
Shigaite



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Ettringite
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Shigaite

Ettringite and Shigaite 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)
 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4

Ettringite and Shigaite Chemical Formula

While comparing Ettringite and Shigaite 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 Shigaite chemical formula.

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Ettringite and Shigaite Specific Gravity

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