Home
Gemstones


Black Opal and Turquoise Physical Properties


Turquoise and Black Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
1.97-2.22   
2.30-2.90   

Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
Not Available   
Good to perfect_usually N/A   

Mohs Hardness
6-6.5   
5-6   

Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.   
CuAl6(PO4)4(OH)8 • 4H2O   

Optical Properties >>
<< Astrology

Black Opal and Turquoise Chemical Formula

While comparing Black Opal and Turquoise 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 Black Opal and Turquoise chemical formula.

Compare Blue Gemstones

Black Opal and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.

Blue Gemstones

Blue Gemstones


Compare Blue Gemstones