Demantoid and Boulder Opal Physical Properties

Demantoid

Boulder Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.77-3.951.98-2.25

1 7.18

1.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

6.55-6.5

2 10

1.8 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

Demantoid and Boulder Opal Chemical Formula

While comparing Demantoid and Boulder Opal 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 Demantoid and Boulder Opal chemical formula.

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

Compare Green Gemstones

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Demantoid Vs Faustite

Demantoid and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Demantoid and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.