Erythrite and Ajoite Physical Properties

Erythrite

Ajoite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.062.96

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Perfect on {010}

1.7 Mohs Hardness

Not Available5

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Erythrite and Ajoite Chemical Formula

While comparing Erythrite and Ajoite 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 Ajoite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Erythrite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.96 whereas that of Ajoite is 2.96.