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Boulder Opal
Boulder Opal

Chrysoberyl
Chrysoberyl



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Boulder Opal
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Chrysoberyl

Boulder Opal and Chrysoberyl Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.253.69-3.81
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Cleavage

None
Distinct on {110}, imperfect on {010}, poor on {001}

Mohs Hardness

5-6.58.5
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
BeAl 2 O 4

Boulder Opal and Chrysoberyl Chemical Formula

While comparing Boulder Opal and Chrysoberyl 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 Chrysoberyl chemical formula.

  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Chrysoberyl- BeAl 2 O 4

Boulder Opal and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.