Charoite and Fluorite Physical Properties

Charoite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

2.54-2.783.00-3.25

1 7.18

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Fracture

Conchoidal

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

Good in three directions

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

Mohs Hardness

5-64

2 10

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Chemical Composition

K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaF₂

Charoite and Fluorite Chemical Formula

While comparing Charoite 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 Charoite and Fluorite chemical formula.

Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fluorite- CaF₂

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Charoite and Fluorite Specific Gravity

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