Gibbsite and Erythrite Physical Properties

Gibbsite

Erythrite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.353.06

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

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

1.6 Cleavage

{001} Perfect

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

1.7 Mohs Hardness

2.5-3Not Available

2 10

1.8 Chemical Composition

Al(OH)3

Co3(AsO4)2•8(H2O)

Gibbsite and Erythrite Chemical Formula

While comparing Gibbsite and Erythrite 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 Gibbsite and Erythrite chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Gibbsite Vs Vanadinite

Gibbsite and Erythrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 3.06 whereas that of Erythrite is 3.06.