Nephrite and Fluorite Physical Properties

Nephrite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

2.90-3.103.00-3.25

1 7.18

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Fracture

Splintery, Granular

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

None

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

Mohs Hardness

6-6.54

2 10

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Chemical Composition

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

CaF₂

Nephrite and Fluorite Chemical Formula

While comparing Nephrite 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 Nephrite and Fluorite chemical formula.

Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Fluorite- CaF₂

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Nephrite and Fluorite Specific Gravity

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