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Grossular
Grossular

Crystal Opal
Crystal Opal



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Grossular
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Crystal Opal

Grossular and Crystal Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.55-3.73
Conchoidal, Uneven
none
7-7.5
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
1.97-2.22
Conchoidal
None
5.5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Grossular and Crystal Opal Chemical Formula

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

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Grossular and Crystal Opal Specific Gravity

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