Moldavite and Pollucite Physical Properties

Moldavite

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

2.32-2.382.86-2.94

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

None observed

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

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

Moldavite and Pollucite Chemical Formula

While comparing Moldavite 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 Moldavite and Pollucite chemical formula.

Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
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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Moldavite and Pollucite Specific Gravity

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