Boulder Opal and Catapleiite Physical Properties

Boulder Opal

Catapleiite

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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

1.98-2.252.72

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

{110} Perfect, {010} Perfect

1.7 Mohs Hardness

5-6.55-6

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Boulder Opal and Catapleiite Chemical Formula

While comparing Boulder Opal and Catapleiite 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 Catapleiite chemical formula.

Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Boulder Opal and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 2.72 whereas that of Catapleiite is 2.72.