Fluorite and Anorthite Physical Properties

Fluorite

Anorthite

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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

3.00-3.252.77

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

46-6.5

2 10

1.8 Chemical Composition

CaF₂

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Fluorite and Anorthite Chemical Formula

While comparing Fluorite and Anorthite 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 Anorthite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Fluorite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 2.77 whereas that of Anorthite is 2.77.