Chiastolite and Erythrite Physical Properties

Chiastolite

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

3.00-3.153.06

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

5-5.5Not Available

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

Co3(AsO4)2•8(H2O)

Chiastolite and Erythrite Chemical Formula

While comparing Chiastolite 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 Chiastolite and Erythrite chemical formula.

Chemical formula of Chiastolite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Chiastolite and Erythrite Specific Gravity

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