Pyrophyllite and Celestine Physical Properties

Pyrophyllite

Celestine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.903.90-4.00

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

{001} Perfect

Perfect on {001}, good on {210}, poor on {010}

1.7 Mohs Hardness

Not Available3-3.5

2 10

1.8 Chemical Composition

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

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyrophyllite and Celestine Chemical Formula

While comparing Pyrophyllite and Celestine 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 Celestine chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Pyrophyllite Vs Sard

Pyrophyllite Vs Sardonyx

Pyrophyllite Vs Scorzalite

Pyrophyllite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.