Fluorite and Sellaite Physical Properties

Fluorite

Sellaite

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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

3.00-3.253.14-3.16

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

Perfect on {010} and {110}

1.7 Mohs Hardness

45-5.5

2 10

1.8 Chemical Composition

CaF₂

MgF 2Ulrich Henn and Claudio C.

Fluorite and Sellaite Chemical Formula

While comparing Fluorite and Sellaite 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 Sellaite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

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Fluorite and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.