Hibonite and Pollucite Physical Properties

Hibonite

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

3.842.86-2.94

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.6 Cleavage

{0001} good, {10 1 0} parting

None observed

1.7 Mohs Hardness

7.5-86.5-7

2 10

1.8 Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

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

Hibonite and Pollucite Chemical Formula

While comparing Hibonite 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 Hibonite and Pollucite chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
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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Hibonite and Pollucite Specific Gravity

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