Pyrophyllite and Labradorite Physical Properties

Pyrophyllite

Labradorite

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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

2.65-2.902.69-2.72

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

{001} Perfect

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

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

(Na,Ca)_1-2Si_3-2O₈

Pyrophyllite and Labradorite Chemical Formula

While comparing Pyrophyllite and Labradorite 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 Labradorite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Pyrophyllite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.