Erythrite and Charoite Physical Properties

Erythrite

Charoite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.062.54-2.78

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Good in three directions

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Erythrite and Charoite Chemical Formula

While comparing Erythrite and Charoite 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 Charoite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Erythrite and Charoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Charoite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 2.54-2.78 whereas that of Charoite is 2.54-2.78.