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Prase Opal
Prase Opal

Boulder Opal
Boulder Opal



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Prase Opal
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Boulder Opal

Prase Opal and Boulder Opal Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.251.98-2.25
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

None
None

Mohs Hardness

5-6.55-6.5
2 10
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Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
SiO 2 + H 2OUlrich Henn and Claudio C.

Prase Opal and Boulder Opal Chemical Formula

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

  • Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Prase Opal and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prase Opal and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase Opal and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Prase Opal is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.