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Crystal Opal
Crystal Opal

Diaspore
Diaspore



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Crystal Opal
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Diaspore

Crystal Opal and Diaspore Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.97-2.22
Conchoidal
None
5.5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
Very brittle
insoluble
-
3.30-3.40
Conchoidal
{010} perfect, {110} distinct, {100} in traces
6.5-7
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Crystal Opal and Diaspore Chemical Formula

While comparing Crystal Opal and Diaspore 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 Crystal Opal and Diaspore chemical formula.

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Crystal Opal and Diaspore Specific Gravity

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