Pyrophyllite and Cavansite Physical Properties

Pyrophyllite

Cavansite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.902.25-2.33

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

{001} Perfect

Good on {010}

1.7 Mohs Hardness

Not Available3-4

2 10

1.8 Chemical Composition

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

Ca(VO)Si4O10•4(H2O)

Pyrophyllite and Cavansite Chemical Formula

While comparing Pyrophyllite and Cavansite 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 Pyrophyllite and Cavansite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cavansite- Ca(VO)Si4O10•4(H2O)

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Pyrophyllite and Cavansite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Cavansite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Cavansite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.25-2.33 whereas that of Cavansite is 2.25-2.33.