Pyrophyllite and Langbeinite Physical Properties

Pyrophyllite

Langbeinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Slowly dissolves in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.90Not Available

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Conchoidal, Brittle

1.6 Cleavage

{001} Perfect

None

1.7 Mohs Hardness

Not Available3.5-4

2 10

1.8 Chemical Composition

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

Not Available

Pyrophyllite and Langbeinite Chemical Formula

While comparing Pyrophyllite and Langbeinite 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 Langbeinite chemical formula.

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

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Pyrophyllite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is Not Available whereas that of Langbeinite is Not Available.