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Gypsum
Gypsum

Coral
Coral



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Gypsum
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Coral

Gypsum and Coral Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Flexible
Soluble
-
2.20-2.40
Conchoidal, Splintery, Fibrous
Perfect on {010}, distinct on {100}
2
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
 
-
-
-
2.60-2.70
Irregular
None
3-4
CaCO 3Ulrich Henn and Claudio C.

Gypsum and Coral Chemical Formula

While comparing Gypsum and Coral 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 Gypsum and Coral chemical formula.

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Gypsum and Coral Specific Gravity

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