Vesuvianite Idocrase and Petalite Physical Properties

Vesuvianite Idocrase

Petalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.502.40

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.

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

Vesuvianite Idocrase and Petalite Chemical Formula

While comparing Vesuvianite Idocrase and Petalite 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 Vesuvianite Idocrase and Petalite chemical formula.

Chemical formula of Vesuvianite Idocrase- Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vesuvianite Idocrase and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite Idocrase and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite Idocrase and Petalite Optical Properties during the identification of gemstone. Specific gravity of Vesuvianite Idocrase is 2.40 whereas that of Petalite is 2.40.