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Richterite
Richterite

Black Opal
Black Opal



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Richterite
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Black Opal

Richterite and Black Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.0-3.5
Uneven
Perfect
5-6
Na(CaNa)(Mg,Fe++)5(Si8O22)(OH)2
 
-
-
-
1.97-2.22
Conchoidal
None
6-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Richterite and Black Opal Chemical Formula

While comparing Richterite 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 Richterite and Black Opal chemical formula.

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Richterite and Black Opal Specific Gravity

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