Fluorite and Poudretteite Physical Properties

Fluorite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

slightly water soluble and in hot hydrochloric acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.252.51-2.53

1 7.18

1.5 Fracture

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

Conchoidal, Splintery

1.6 Cleavage

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

None

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

CaF₂

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Fluorite and Poudretteite Chemical Formula

While comparing Fluorite and Poudretteite 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 Poudretteite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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Fluorite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.