Star Sapphire and Scheelite Physical Properties

Star Sapphire

Scheelite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.055.9-6.3

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

Not Available4.5-5

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

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

Star Sapphire and Scheelite Chemical Formula

While comparing Star Sapphire and Scheelite 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 Star Sapphire and Scheelite chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Star Sapphire Vs Tourmaline

Star Sapphire Vs Tortoiseshell

Star Sapphire and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.