Pleonaste and Erythrite Physical Properties

Pleonaste

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

3.803.06

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

8Not Available

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Co3(AsO4)2•8(H2O)

Pleonaste and Erythrite Chemical Formula

While comparing Pleonaste 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 Pleonaste and Erythrite chemical formula.

Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Pleonaste and Erythrite Specific Gravity

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