Smithsonite and Fluorite Physical Properties

Smithsonite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

4.00-4.653.00-3.25

1 7.18

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Fracture

Uneven, Sub-Conchoidal

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

Perfect on [1011]

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

Mohs Hardness

5-5.54

2 10

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Chemical Composition

ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaF₂

Smithsonite and Fluorite Chemical Formula

While comparing Smithsonite 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 Smithsonite and Fluorite chemical formula.

Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fluorite- CaF₂

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Smithsonite and Fluorite Specific Gravity

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