Petalite and Tremolite Physical Properties

Petalite

Tremolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.402.95-3.07

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

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

1.6 Cleavage

Perfect on {001}, poor on {201} with 38.5° angle between the two

Perfect on {110} at 56° and 124°; partings on {010} and {100}

1.7 Mohs Hardness

6-6.55-6

2 10

1.8 Chemical Composition

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Petalite and Tremolite Chemical Formula

While comparing Petalite and Tremolite 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 Petalite and Tremolite chemical formula.

Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Tremolite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Compare Gems Found In Australia

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Petalite Vs Sapphire

Petalite and Tremolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Tremolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Tremolite Optical Properties during the identification of gemstone. Specific gravity of Petalite is 2.95-3.07 whereas that of Tremolite is 2.95-3.07.