Papagoite and Petalite Physical Properties

Papagoite

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

3.252.40

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

Imperfect in one direction

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

1.7 Mohs Hardness

5-5.56-6.5

2 10

1.8 Chemical Composition

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Papagoite and Petalite Chemical Formula

While comparing Papagoite 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 Papagoite and Petalite chemical formula.

Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Papagoite and Petalite Specific Gravity

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