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Boulder Opal
Boulder Opal

Quartz
Quartz



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Boulder Opal
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Quartz

Boulder Opal and Quartz Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
Brittle
-
-
2.65
Conchoidal
{0110} Indistinct
7
SiO2

Boulder Opal and Quartz Chemical Formula

While comparing Boulder Opal and Quartz 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 Boulder Opal and Quartz chemical formula.

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Boulder Opal and Quartz Specific Gravity

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