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Fluorite
Fluorite

Sylvite
Sylvite



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Fluorite
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Sylvite

Fluorite and Sylvite Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

slightly water soluble and in hot hydrochloric acid
Soluble

Durability

-
-

Specific Gravity

3.00-3.251.993
1 7.18
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Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann
Uneven

Cleavage

Octahedral, perfect on {111}, parting on {011}
Perfect on [100], [010], [001]

Mohs Hardness

42.5
2 10
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Chemical Composition

CaF2
KCl

Fluorite and Sylvite Chemical Formula

While comparing Fluorite and Sylvite 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 Sylvite chemical formula.

  • Chemical formula of Fluorite- CaF2
  • Chemical formula of Sylvite- KCl

Fluorite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 1.993 whereas that of Sylvite is 1.993.