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Boulder Opal
Boulder Opal

Albite
Albite



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Boulder Opal
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Albite

Boulder Opal and Albite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.252.60-2.65
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

None
Perfect on {001}, very good on {010}, imperfect on {110}

Mohs Hardness

5-6.56-6.5
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Boulder Opal and Albite Chemical Formula

While comparing Boulder Opal and Albite 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 Albite chemical formula.

  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Albite- NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Boulder Opal and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Albite Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 2.60-2.65 whereas that of Albite is 2.60-2.65.