Nuummite and Erythrite Physical Properties

Nuummite

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

3.18-3.373.06

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Perfect on 210

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

1.7 Mohs Hardness

5.5-6Not Available

2 10

1.8 Chemical Composition

Not Available

Co3(AsO4)2•8(H2O)

Nuummite and Erythrite Chemical Formula

While comparing Nuummite 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 Nuummite and Erythrite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

Compare Green Gemstones

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Nuummite Vs Phosphosiderite

Nuummite Vs Pezzottaite

Nuummite and Erythrite Specific Gravity

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