Pollucite and Hiddenite Physical Properties

Pollucite

Hiddenite

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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

2.86-2.943.15-3.21

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

None observed

1,2 prismatic

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

LiAlSi₂O₆

Pollucite and Hiddenite Chemical Formula

While comparing Pollucite and Hiddenite 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 Hiddenite 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 Hiddenite- LiAlSi₂O₆

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Pollucite and Hiddenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Hiddenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Hiddenite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.15-3.21 whereas that of Hiddenite is 3.15-3.21.