Pyrophyllite and Starlite Physical Properties

Pyrophyllite

Starlite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.903.91-4.73

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} Perfect

Not Available

1.7 Mohs Hardness

Not Available6.5-7.5

2 10

1.8 Chemical Composition

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

ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Pyrophyllite and Starlite Chemical Formula

While comparing Pyrophyllite and Starlite 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 Starlite chemical formula.

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

Compare Blue Gemstones

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Pyrophyllite and Starlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Starlite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.91-4.73 whereas that of Starlite is 3.91-4.73.