Fluorite and Pollucite Physical Properties

Fluorite

Pollucite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

slightly water soluble and in hot hydrochloric acid

Readily soluble in HF

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.252.86-2.94

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

Octahedral, perfect on {111}, parting on {011}

None observed

1.7 Mohs Hardness

46.5-7

2 10

1.8 Chemical Composition

CaF₂

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

Fluorite and Pollucite Chemical Formula

While comparing Fluorite 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 Fluorite and Pollucite chemical formula.

Chemical formula of Fluorite- CaF₂
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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Fluorite and Pollucite Specific Gravity

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