Cancrinite and Rhodolite Physical Properties

Cancrinite

Rhodolite

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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

2.42-2.523.84

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

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

none, may show indistinct parting

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

(Mg,Fe)₃Al₂Si₃O₁₂

Cancrinite and Rhodolite Chemical Formula

While comparing Cancrinite and Rhodolite 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 Rhodolite 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 Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Cancrinite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cancrinite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cancrinite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Cancrinite is 3.84 whereas that of Rhodolite is 3.84.