Fluorite and Hardystonite Physical Properties

Fluorite

Hardystonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

slightly water soluble and in hot hydrochloric acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.253.396-3.443

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

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

[001] good, [100] and [110] fair

1.7 Mohs Hardness

43-4

2 10

1.8 Chemical Composition

CaF₂

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Fluorite and Hardystonite Chemical Formula

While comparing Fluorite and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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Fluorite and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.