Edenite and Erythrite Physical Properties

Edenite

Erythrite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.373.06

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

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

1.6 Cleavage

Good on (110)

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

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

NaCa2Mg5Si7AlO22(OH)2

Co3(AsO4)2•8(H2O)

Edenite and Erythrite Chemical Formula

While comparing Edenite 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 Edenite and Erythrite chemical formula.

Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Edenite and Erythrite Specific Gravity

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