Sard and Pyrophyllite Physical Properties

Sard

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

2.58-2.63

2.65-2.90

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Not Available

{001} Perfect

1.7 Mohs Hardness

6.5-7

Not Available

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sard and Pyrophyllite Chemical Formula

While comparing Sard 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 Sard and Pyrophyllite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Sard Vs Spinel

Sard Vs Sodalite

Sard Vs Sillimanite

Sard and Pyrophyllite Specific Gravity

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