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Boulder Opal
Boulder Opal

Moonstone
Moonstone



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Boulder Opal
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Moonstone

Boulder Opal and Moonstone Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.252.56-2.60
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, ConchoidalWalter Schumann

Cleavage

None
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

Mohs Hardness

5-6.56-6.5
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8

Boulder Opal and Moonstone Chemical Formula

While comparing Boulder Opal and Moonstone 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 Moonstone chemical formula.

  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8

Boulder Opal and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.