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Gypsum
Gypsum

Mellite
Mellite



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Gypsum
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Mellite

Gypsum and Mellite 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)
 
-
-
-
1.58-1.60
Conchoidal
{011} Imperfect
2
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Gypsum and Mellite Chemical Formula

While comparing Gypsum and Mellite 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 Mellite chemical formula.

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Gypsum and Mellite Specific Gravity

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