Jade and Pyrophyllite Physical Properties

Jade

Pyrophyllite

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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

2.90-3.382.65-2.90

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

1 or 2,2 prismatic.

{001} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Pyrophyllite Chemical Formula

While comparing Jade 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 Jade and Pyrophyllite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Jade and Pyrophyllite Specific Gravity

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