Erythrite and Fluorite Physical Properties

Erythrite

Fluorite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.063.00-3.25

1 7.18

1.5 Fracture

Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

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

1.6 Cleavage

Perfect on {010}; poor on {100} and { 1 02}.

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

1.7 Mohs Hardness

Not Available4

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

CaF₂

Erythrite and Fluorite Chemical Formula

While comparing Erythrite 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 Erythrite and Fluorite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Fluorite- CaF₂

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Erythrite and Fluorite Specific Gravity

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