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Scheelite
Scheelite

Gypsum
Gypsum



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Scheelite
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Gypsum

Scheelite and Gypsum Physical Properties

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Physical Properties

Tenacity

Brittle
Flexible

Solubility

-
Soluble

Durability

-
-

Specific Gravity

5.9-6.32.20-2.40
1 7.18
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Fracture

Conchoidal, Uneven
Conchoidal, Splintery, Fibrous

Cleavage

On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Perfect on {010}, distinct on {100}

Mohs Hardness

4.5-52
2 10
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Chemical Composition

CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Scheelite and Gypsum Chemical Formula

While comparing Scheelite and Gypsum 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 Scheelite and Gypsum chemical formula.

  • Chemical formula of Scheelite- CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Scheelite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.