Star Sapphire and Diopside Physical Properties

Star Sapphire

Diopside

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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

3.90-4.053.22-3.40

1 7.18

1.5 Fracture

Not Available

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

Not Available

Distinct/good on {110}

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

CaMgSi₂O₆

Star Sapphire and Diopside Chemical Formula

While comparing Star Sapphire and Diopside 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 Diopside chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Diopside- CaMgSi₂O₆

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Star Sapphire and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Diopside Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.22-3.40 whereas that of Diopside is 3.22-3.40.