Covellite and Periclase Physical Properties

Covellite

Periclase

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1 Physical Properties

1.1 Tenacity

Flexible

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.6-4.763.7-3.9

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

Perfect on {0001}

{001} perfect; {111} imperfect, may exhibit parting on , {011}

1.7 Mohs Hardness

Not Available5.5-6

2 10

1.8 Chemical Composition

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

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Covellite and Periclase Chemical Formula

While comparing Covellite and Periclase 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 Covellite and Periclase chemical formula.

Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Covellite Vs Elbaite

Covellite Vs Fluorapatite

Covellite Vs Falcons Eye

Covellite and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Covellite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.