Goshenite and Pollucite Physical Properties

Goshenite

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

2.60-2.90

2.86-2.94

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

3,1 basal

None observed

1.7 Mohs Hardness

7.5-8

6.5-7

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Goshenite and Pollucite Chemical Formula

While comparing Goshenite 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 Goshenite and Pollucite chemical formula.

Chemical formula of Goshenite- Be₃Al₂SiO₆
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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Goshenite and Pollucite Specific Gravity

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