Akoya pearl and Petalite Physical Properties

Akoya pearl

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

Not Available2.40

1 7.18

1.5 Fracture

Not Available

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

Not Available

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

Akoya pearl and Petalite Chemical Formula

While comparing Akoya pearl 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 Akoya pearl and Petalite chemical formula.

Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Akoya pearl Vs Cordierite

Akoya pearl Vs Cavansite

Akoya pearl Vs Vishnevite

Akoya pearl and Petalite Specific Gravity

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