Papagoite and Opal Physical Properties

Papagoite

Opal

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1 Physical Properties

1.1 Tenacity

Not Available

BrittleWalter Schumann

1.2 Solubility

Not Available

hot salt water

1.3 Durability

Not Available

1.4 Specific Gravity

3.251.98-2.25

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

Imperfect in one direction

None

1.7 Mohs Hardness

5-5.55-6.5

2 10

1.8 Chemical Composition

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

SiO₂ · nH₂O

Papagoite and Opal Chemical Formula

While comparing Papagoite and Opal 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 Opal chemical formula.

Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Opal- SiO₂ · nH₂O

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Papagoite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Papagoite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Papagoite and Opal Optical Properties during the identification of gemstone. Specific gravity of Papagoite is 1.98-2.25 whereas that of Opal is 1.98-2.25.