Fluorite and Apophyllite Physical Properties

Fluorite

Apophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.3 Solubility

slightly water soluble and in hot hydrochloric acid

Not Available

1.6 Durability

Not Available

1.7 Specific Gravity

3.00-3.252.30-2.50

1 7.18

2.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

2.6 Cleavage

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

Perfect on (001)

2.7 Mohs Hardness

44.5-5

2 10

2.14 Chemical Composition

CaF₂

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Fluorite and Apophyllite Chemical Formula

While comparing Fluorite and Apophyllite 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 Apophyllite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Fluorite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.