Pollucite and Aragonite Physical Properties

Pollucite

Aragonite

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Physical Properties

Tenacity

Brittle

Solubility

Readily soluble in HF

Dilute acid

Durability

Specific Gravity

2.86-2.942.93-2.96

1 7.18

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Fracture

Conchoidal, Uneven

Subconchoidal, Conchoidal

Cleavage

None observed

Distinct on {010}, imperfect {110} and {011}

Mohs Hardness

6.5-73.5-4

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pollucite and Aragonite Chemical Formula

While comparing Pollucite and Aragonite 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 Aragonite 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 Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare White Gemstones

Pollucite Vs Whitlockite

Pollucite Vs Witherite

Pollucite Vs Xonotlite

Pollucite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.