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Boulder Opal
Boulder Opal

Demantoid
Demantoid



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Boulder Opal
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Demantoid

Boulder Opal and Demantoid Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.253.77-3.95
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

None
Imperfect

Mohs Hardness

5-6.56.5
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Boulder Opal and Demantoid Chemical Formula

While comparing Boulder Opal and Demantoid 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 Demantoid chemical formula.

  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Boulder Opal and Demantoid Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Demantoid Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Demantoid Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 3.77-3.95 whereas that of Demantoid is 3.77-3.95.