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Boulder Opal
Boulder Opal

Ammolite
Ammolite



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Boulder Opal
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Ammolite

Boulder Opal and Ammolite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.252.75-2.80
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Granular

Cleavage

None
no true cleavage

Mohs Hardness

5-6.54
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
CaCO3

Boulder Opal and Ammolite Chemical Formula

While comparing Boulder Opal and Ammolite 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 Ammolite chemical formula.

  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Ammolite- CaCO3

Boulder Opal and Ammolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Ammolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Ammolite Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 2.75-2.80 whereas that of Ammolite is 2.75-2.80.