Pyrophyllite and Stolzite Physical Properties

Pyrophyllite

Stolzite

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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

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Conchoidal, Uneven, Brittle

1.6 Cleavage

{001} Perfect

Imperfect on {001}, indistinct on {011}

1.7 Mohs Hardness

Not Available2.5-3

2 10

1.8 Chemical Composition

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

Not Available

Pyrophyllite and Stolzite Chemical Formula

While comparing Pyrophyllite and Stolzite 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 Stolzite chemical formula.

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

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Pyrophyllite and Stolzite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Stolzite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Stolzite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2 whereas that of Stolzite is 2.