Pollucite and Carletonite Physical Properties

Pollucite

Carletonite

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Physical Properties

Tenacity

Brittle

Solubility

Readily soluble in HF

Durability

Specific Gravity

2.86-2.942.45

1 7.18

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Fracture

Conchoidal, Uneven

Conchoidal

Cleavage

None observed

Perfect on {001}, good on {110}

Mohs Hardness

6.5-74-4.5

2 10

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Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Pollucite and Carletonite Chemical Formula

While comparing Pollucite and Carletonite 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 Pollucite and Carletonite chemical formula.

Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare White Gemstones

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Pollucite and Carletonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Carletonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Carletonite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.45 whereas that of Carletonite is 2.45.