Topaz and Fluorite Physical Properties

Topaz

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

3.49-3.57

3.00-3.25

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[001] Perfect

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

1.7 Mohs Hardness

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

CaF₂

Topaz and Fluorite Chemical Formula

While comparing Topaz 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 Topaz and Fluorite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Fluorite- CaF₂

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Topaz and Fluorite Specific Gravity

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