Apophyllite KF and Pyrophyllite Physical Properties

Apophyllite KF

Pyrophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.33-2.372.65-2.90

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Perfect on {001}, imperfect on {110}

{001} Perfect

1.7 Mohs Hardness

4.5-5Not Available

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

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

Apophyllite KF and Pyrophyllite Chemical Formula

While comparing Apophyllite KF 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 Apophyllite KF and Pyrophyllite chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Apophyllite KF Vs Langbeinite

Apophyllite KF Vs Nepouite

Apophyllite KF Vs Hauyne

Apophyllite KF and Pyrophyllite Specific Gravity

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