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Onyx
Onyx

Uvite
Uvite



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Onyx
X
Uvite

Onyx and Uvite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.55-2.70
-
Indiscernible
6.5-7
SiO2
 
-
-
-
2.97-3.14
Uneven, Conchoidal
{1011} Indistinct
-9999
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Onyx and Uvite Chemical Formula

While comparing Onyx and Uvite 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 Onyx and Uvite chemical formula.

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Onyx and Uvite Specific Gravity

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