Zinnwaldite and Erythrite Physical Properties

Zinnwaldite

Erythrite

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1 Physical Properties

1.1 Tenacity

Elastic

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.13.06

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

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

1.7 Mohs Hardness

3.5-4.0Not Available

2 10

1.8 Chemical Composition

Not Available

Co3(AsO4)2•8(H2O)

Zinnwaldite and Erythrite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Erythrite chemical formula.

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

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Zinnwaldite and Erythrite Specific Gravity

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