Erythrite and Fibrolite Physical Properties

Erythrite

Fibrolite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.063.14-3.25

1 7.18

1.5 Fracture

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

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Erythrite and Fibrolite Chemical Formula

While comparing Erythrite and Fibrolite 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 Fibrolite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Erythrite and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.