Cancrinite and Brucite Physical Properties

Cancrinite

Brucite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.42-2.522.39

1 7.18

1.5 Fracture

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

Irregular

1.6 Cleavage

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

Perfect on {0001}

1.7 Mohs Hardness

5-62.5

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

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Cancrinite and Brucite Chemical Formula

While comparing Cancrinite and Brucite 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 Brucite 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 Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cancrinite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cancrinite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cancrinite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Cancrinite is 2.39 whereas that of Brucite is 2.39.