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Milk Opal
Milk Opal

Rock Crystal
Rock Crystal



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Milk Opal
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Rock Crystal

Milk Opal and Rock Crystal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO2·nH2O
 
-
-
-
2.65
ConchoidalWalter Schumann
None
7
SiO 2Walter Schumann , Gemstones of the world (2001)

Milk Opal and Rock Crystal Chemical Formula

While comparing Milk Opal and Rock Crystal 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 Milk Opal and Rock Crystal chemical formula.

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Milk Opal and Rock Crystal Specific Gravity

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