Fluorite and Pyrophyllite Physical Properties

Fluorite

Pyrophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

slightly water soluble and in hot hydrochloric acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.252.65-2.90

1 7.18

1.5 Fracture

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

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

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

{001} Perfect

1.7 Mohs Hardness

4Not Available

2 10

1.8 Chemical Composition

CaF₂

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fluorite and Pyrophyllite Chemical Formula

While comparing Fluorite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Fluorite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.