Pollucite and Star Ruby Physical Properties

Pollucite

Star Ruby

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Readily soluble in HF

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.943.95-4.10

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None observed

Not Available

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Pollucite and Star Ruby Chemical Formula

While comparing Pollucite and Star Ruby 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 Star Ruby 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 Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare White Gemstones

Pollucite Vs Rubellite

Pollucite Vs Sard

Pollucite Vs Rutilated Quartz

Pollucite and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.