Cancrinite and Rubellite Physical Properties

Cancrinite

Rubellite

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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

2.42-2.523.01-3.06

1 7.18

1.5 Fracture

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

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

5-67-7.5

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

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Cancrinite and Rubellite Chemical Formula

While comparing Cancrinite and Rubellite 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 Rubellite 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 Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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Cancrinite and Rubellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cancrinite and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cancrinite and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Cancrinite is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.