Hexagonite and Petalite Physical Properties

Hexagonite

Petalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.032.40

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

[110] perfect; [010] distinct

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

1.7 Mohs Hardness

5-66-6.5

2 10

1.8 Chemical Composition

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

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

Hexagonite and Petalite Chemical Formula

While comparing Hexagonite 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 Hexagonite and Petalite chemical formula.

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

Compare Red Gemstones

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Hexagonite Vs Kyanite Cyprine

Hexagonite Vs Manganotantalite

Hexagonite and Petalite Specific Gravity

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