Diaspore and Erythrite Physical Properties

Diaspore

Erythrite

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1 Physical Properties

1.1 Tenacity

Very brittle

Sectile

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.403.06

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

{010} perfect, {110} distinct, {100} in traces

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

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Co3(AsO4)2•8(H2O)

Diaspore and Erythrite Chemical Formula

While comparing Diaspore 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 Diaspore and Erythrite chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Diaspore and Erythrite Specific Gravity

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