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Boulder Opal
Boulder Opal

Shigaite
Shigaite



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Boulder Opal
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Shigaite

Boulder Opal and Shigaite 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.
 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4

Boulder Opal and Shigaite Chemical Formula

While comparing Boulder Opal and Shigaite 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 Shigaite chemical formula.

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Boulder Opal and Shigaite Specific Gravity

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