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Fluorite
Fluorite

Sapphire
Sapphire



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Fluorite
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Sapphire

Fluorite and Sapphire Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

slightly water soluble and in hot hydrochloric acid
insoluble

Durability

-
-

Specific Gravity

3.00-3.253.95-4.03
1 7.18
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Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann
Uneven

Cleavage

Octahedral, perfect on {111}, parting on {011}
None, but may exhibit parting

Mohs Hardness

49
2 10
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Chemical Composition

CaF2
Al 2 O 3

Fluorite and Sapphire Chemical Formula

While comparing Fluorite and Sapphire 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 Fluorite and Sapphire chemical formula.

  • Chemical formula of Fluorite- CaF2
  • Chemical formula of Sapphire- Al 2 O 3

Fluorite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.