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Demantoid
Demantoid

Precious Opal
Precious Opal



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Demantoid
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Precious Opal

Demantoid and Precious Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.77-3.95
-
Imperfect
6.5
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)

Demantoid and Precious Opal Chemical Formula

While comparing Demantoid and Precious 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 Demantoid and Precious Opal chemical formula.

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Demantoid and Precious Opal Specific Gravity

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