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Boulder Opal
Boulder Opal

Emerald
Emerald



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Boulder Opal
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Emerald

Boulder Opal and Emerald 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.
 
-
-
Hard
2.67-2.78
Uneven, ConchoidalWalter Schumann
Imperfect on the [0001]
7.5-8
Be3Al2SiO6

Boulder Opal and Emerald Chemical Formula

While comparing Boulder Opal and Emerald 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 Emerald chemical formula.

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Boulder Opal and Emerald Specific Gravity

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