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Ettringite
Ettringite

Rosasite
Rosasite



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Ettringite
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Rosasite

Ettringite and Rosasite 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)
 
Brittle
Effervesces in cold
-
4-4.2
Splintery
Perfect on {100} and {010}
4
CuZn(CO3)(OH)2

Ettringite and Rosasite Chemical Formula

While comparing Ettringite and Rosasite 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 Rosasite chemical formula.

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Ettringite and Rosasite Specific Gravity

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