Petalite and Ekanite Physical Properties

Petalite

Ekanite

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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

2.403.28-3.32

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

{101} Distinct

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

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

ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

Petalite and Ekanite Chemical Formula

While comparing Petalite and Ekanite 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 Ekanite chemical formula.

Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ekanite- ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

Compare Gems Found In Australia

Petalite Vs Scheelite

Petalite Vs Scolecite

Petalite Vs Sapphire

Petalite and Ekanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Ekanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Ekanite Optical Properties during the identification of gemstone. Specific gravity of Petalite is 3.28-3.32 whereas that of Ekanite is 3.28-3.32.