Erythrite and Sunstone Physical Properties

Erythrite

Sunstone

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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

3.062.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

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

001

1.7 Mohs Hardness

Not Available6

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Erythrite and Sunstone Chemical Formula

While comparing Erythrite and Sunstone 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 Sunstone chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Erythrite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.