Pollucite and Baryte Physical Properties

Pollucite

Baryte

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Readily soluble in HF

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.944.3-5

1 7.18

1.8 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Irregular/uneven

1.9 Cleavage

None observed

Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect

1.10 Mohs Hardness

6.5-73-3.5

2 10

1.12 Chemical Composition

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

Not Available

Pollucite and Baryte Chemical Formula

While comparing Pollucite and Baryte 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 Baryte chemical formula.

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

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Pollucite and Baryte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Baryte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Baryte Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 4.3-5 whereas that of Baryte is 4.3-5.