Labradorite and Erythrite Physical Properties

Labradorite

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

2.69-2.723.06

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

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

1.6 Cleavage

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

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

1.7 Mohs Hardness

6-6.5Not Available

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

Co3(AsO4)2•8(H2O)

Labradorite and Erythrite Chemical Formula

While comparing Labradorite 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 Labradorite and Erythrite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Labradorite and Erythrite Specific Gravity

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