Barite and Pollucite Physical Properties

Barite

Pollucite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

4.482.86-2.94

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

{010} Perfect, {210} Perfect, {010} Imperfect

None observed

1.7 Mohs Hardness

3-3.56.5-7

2 10

1.8 Chemical Composition

BaSO4

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

Barite and Pollucite Chemical Formula

While comparing Barite and Pollucite 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 Barite and Pollucite chemical formula.

Chemical formula of Barite- BaSO4
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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Barite and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Barite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Barite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Barite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.