Poldervaartite and Covellite Physical Properties

Poldervaartite

Covellite

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1 Physical Properties

1.1 Tenacity

Not Available

Flexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.914.6-4.76

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

None

Perfect on {0001}

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Poldervaartite and Covellite Chemical Formula

While comparing Poldervaartite and Covellite 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 Poldervaartite and Covellite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Poldervaartite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.