Schorl and Pyrophyllite Physical Properties

Schorl

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

3.18-3.222.65-2.90

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

{1011} Indistinct

{001} Perfect

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

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

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.

Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Black Gemstones

Schorl Vs Snowflake Obsidian

Schorl Vs Triplite

Schorl Vs Xenotime

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 and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.