Riesling Beryl and Petalite Physical Properties

Riesling Beryl

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

2.66-2.862.40

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

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

7.5-86-6.5

2 10

1.8 Chemical Composition

Al 2Be 3Si 6O 18Martin H.

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

Riesling Beryl and Petalite Chemical Formula

While comparing Riesling Beryl 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 Riesling Beryl and Petalite chemical formula.

Chemical formula of Riesling Beryl- Al 2Be 3Si 6O 18Martin H.
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Riesling Beryl Vs Sard

Riesling Beryl Vs Sapphirine

Riesling Beryl Vs Sardonyx

Riesling Beryl and Petalite Specific Gravity

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