Scheelite and Legrandite Physical Properties

Scheelite

Legrandite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

5.9-6.33.98-4.04

1 7.18

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Fracture

Conchoidal, Uneven

Conchoidal

Cleavage

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

Imperfect, poor one {100}

Mohs Hardness

4.5-54.5-5

2 10

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Chemical Composition

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

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Scheelite and Legrandite Chemical Formula

While comparing Scheelite and Legrandite 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 Legrandite chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Scheelite and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.