Erythrite and Chlorastrolite Physical Properties

Erythrite

Chlorastrolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.063.1-3.5

1 7.18

1.5 Fracture

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

Granular

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

Erythrite and Chlorastrolite Chemical Formula

While comparing Erythrite and Chlorastrolite 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 Erythrite and Chlorastrolite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

Compare Red Gemstones

Erythrite Vs Polyhalite

Erythrite Vs Stolzite

Erythrite Vs Richterite

Erythrite and Chlorastrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Chlorastrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Chlorastrolite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.1-3.5 whereas that of Chlorastrolite is 3.1-3.5.