Schorl and Pyrophyllite Physical Properties

Schorl

Pyrophyllite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.18-3.22

Uneven, Conchoidal

{1011} Indistinct

-9999

Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

2.65-2.90

{001} Perfect

-9999

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

Schorl and Pyrophyllite Chemical Formula

While comparing Schorl 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 Schorl and Pyrophyllite chemical formula.

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Schorl and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl Vs Pyrophyllite during the identification of gemstone. Specific gravity of Schorl is whereas that of Pyrophyllite is .