Sellaite and Fluorite Physical Properties

Sellaite

Fluorite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.14-3.163.00-3.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {010} and {110}

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

1.7 Mohs Hardness

5-5.54

2 10

1.8 Chemical Composition

MgF 2Ulrich Henn and Claudio C.

CaF₂

Sellaite and Fluorite Chemical Formula

While comparing Sellaite 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 Sellaite and Fluorite chemical formula.

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

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Sellaite and Fluorite Specific Gravity

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