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Papagoite
Papagoite

Black Opal
Black Opal



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Papagoite
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Black Opal

Papagoite and Black Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.25
-
Imperfect in one direction
5-5.5
CaCuAlSi 2O 6(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
1.97-2.22
Conchoidal
None
6-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Papagoite and Black Opal Chemical Formula

While comparing Papagoite and Black 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 Black Opal chemical formula.

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Papagoite and Black Opal Specific Gravity

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