Pollucite and Clinozoisite Physical Properties

Pollucite

Clinozoisite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Readily soluble in HF

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.943.21-3.38

1 7.18

1.5 Fracture

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

Irregular/uneven, Uneven

1.6 Cleavage

None observed

Perfect on {001}

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

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

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Pollucite and Clinozoisite Chemical Formula

While comparing Pollucite and Clinozoisite 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 Clinozoisite 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 Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare White Gemstones

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Pollucite and Clinozoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Clinozoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Clinozoisite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.21-3.38 whereas that of Clinozoisite is 3.21-3.38.