Scheelite and Anhydrite Physical Properties

Scheelite

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

5.9-6.32.90-2.98

1 7.18

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Fracture

Conchoidal, Uneven

Conchoidal

Cleavage

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

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

4.5-53.5

2 10

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Chemical Composition

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Scheelite and Anhydrite Chemical Formula

While comparing Scheelite and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Scheelite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.