Foitite and Fluorite Physical Properties

Foitite

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

3.173.00-3.25

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

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

1.6 Cleavage

None

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

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

CaF₂

Foitite and Fluorite Chemical Formula

While comparing Foitite 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 Foitite and Fluorite chemical formula.

Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Fluorite- CaF₂

Compare Violet Gemstones

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Foitite and Fluorite Specific Gravity

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