Cancrinite and Boulder Opal Physical Properties

Cancrinite

Boulder Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.42-2.521.98-2.25

1 7.18

1.5 Fracture

Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

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

1.6 Cleavage

Perfect on {10 1 0}, poor on {0001}

Not Available

1.7 Mohs Hardness

5-65-6.5

2 10

1.8 Chemical Composition

Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references

SiO 2 + H 2OUlrich Henn and Claudio C.

Cancrinite and Boulder Opal Chemical Formula

While comparing Cancrinite 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 Cancrinite and Boulder Opal chemical formula.

Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Cancrinite and Boulder Opal Specific Gravity

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