Omphacite and Erythrite Physical Properties

Omphacite

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

3.16-3.433.06

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{110} Good, {110} Good

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

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Co3(AsO4)2•8(H2O)

Omphacite and Erythrite Chemical Formula

While comparing Omphacite 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 Omphacite and Erythrite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

Compare Green Gemstones

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Omphacite and Erythrite Specific Gravity

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