Fluorite and Topaz Physical Properties

Fluorite

Topaz

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

3.00-3.253.49-3.57

1 7.18

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Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann

Subconchoidal, Uneven, Conchoidal

Cleavage

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

[001] Perfect

Mohs Hardness

2 10

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Chemical Composition

CaF₂

Al₂SiO₄(F,OH)₂

Fluorite and Topaz Chemical Formula

While comparing Fluorite and Topaz 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 Topaz chemical formula.

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

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Fluorite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.