Zoisite and Fluorite Physical Properties

Zoisite

Fluorite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.503.00-3.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect {010} imperfect {100}

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

1.7 Mohs Hardness

6-74

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

CaF₂

Zoisite and Fluorite Chemical Formula

While comparing Zoisite and Fluorite 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 Zoisite and Fluorite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Fluorite- CaF₂

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Zoisite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.