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Boulder Opal
Boulder Opal

Papagoite
Papagoite



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Boulder Opal
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Papagoite

Boulder Opal and Papagoite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
-
-
-
3.25
-
Imperfect in one direction
5-5.5
CaCuAlSi 2O 6(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Boulder Opal and Papagoite Chemical Formula

While comparing Boulder Opal and Papagoite 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 Boulder Opal and Papagoite chemical formula.

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Boulder Opal and Papagoite Specific Gravity

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