Pyrophyllite and Sunstone Physical Properties

Pyrophyllite

Sunstone

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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

2.65-2.902.62-2.65

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Gemstones of the world (2001)

1.6 Cleavage

{001} Perfect

001

1.7 Mohs Hardness

Not Available6

2 10

1.8 Chemical Composition

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

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Pyrophyllite and Sunstone Chemical Formula

While comparing Pyrophyllite and Sunstone 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 Sunstone chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Pyrophyllite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.