Petalite and Vesuvianite Idocrase Physical Properties

Petalite

Vesuvianite Idocrase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.403.25-3.50

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-6.5Not Available

2 10

1.8 Chemical Composition

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

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

Petalite and Vesuvianite Idocrase Chemical Formula

While comparing Petalite and Vesuvianite Idocrase 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 Vesuvianite Idocrase chemical formula.

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

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Petalite and Vesuvianite Idocrase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Vesuvianite Idocrase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Vesuvianite Idocrase Optical Properties during the identification of gemstone. Specific gravity of Petalite is 3.25-3.50 whereas that of Vesuvianite Idocrase is 3.25-3.50.