Star Sapphire and Fluorite Physical Properties

Star Sapphire

Fluorite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.053.00-3.25

1 7.18

1.5 Fracture

Not Available

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

Not Available

Octahedral, perfect on {111}, parting on {011}

1.7 Mohs Hardness

Not Available4

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

CaF₂

Star Sapphire and Fluorite Chemical Formula

While comparing Star Sapphire and Fluorite 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 Fluorite chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Fluorite- CaF₂

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Star Sapphire and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.