Erythrite and Glaucophane Physical Properties

Erythrite

Glaucophane

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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

3.063-3.15

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

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

Good on [110] and on [001]

1.7 Mohs Hardness

Not Available6.0-6.5

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

[ ]Na2(Mg3Al2)Si8O22(OH)2

Erythrite and Glaucophane Chemical Formula

While comparing Erythrite and Glaucophane 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 Glaucophane chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2

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Erythrite and Glaucophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3-3.15 whereas that of Glaucophane is 3-3.15.