Pyrope Garnet and Boulder Opal Physical Properties

Pyrope Garnet

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

3.5-3.61.98-2.25

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

7-7.55-6.5

2 10

1.8 Chemical Composition

Mg₃Al₂Si₃O₁₂

SiO 2 + H 2OUlrich Henn and Claudio C.

Pyrope Garnet and Boulder Opal Chemical Formula

While comparing Pyrope Garnet 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 Pyrope Garnet and Boulder Opal chemical formula.

Chemical formula of Pyrope Garnet- Mg₃Al₂Si₃O₁₂
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Pyrope Garnet and Boulder Opal Specific Gravity

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