Scheelite and Iolite Physical Properties

Scheelite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.9-6.32.6-2.7

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven

Not Available

1.6 Cleavage

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

3,1

1.7 Mohs Hardness

4.5-57-7.5

2 10

1.8 Chemical Composition

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

Mg₂Al₄Si₅O₁₈

Scheelite and Iolite Chemical Formula

While comparing Scheelite and Iolite 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 Iolite chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Scheelite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.