Shattuckite and Erythrite Physical Properties

Shattuckite

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

3.80-4.153.06

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

perfect along [010] and [100]

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

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Co3(AsO4)2•8(H2O)

Shattuckite and Erythrite Chemical Formula

While comparing Shattuckite 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 Shattuckite and Erythrite chemical formula.

Chemical formula of Shattuckite- Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

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Shattuckite and Erythrite Specific Gravity

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