Covellite and Oligoclase Physical Properties

Covellite

Oligoclase

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1 Physical Properties

1.1 Tenacity

Flexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.6-4.762.62-2.67

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

Perfect on {0001}

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

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

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Covellite and Oligoclase Chemical Formula

While comparing Covellite and Oligoclase 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 Oligoclase chemical formula.

Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Covellite Vs Elbaite

Covellite Vs Fluorapatite

Covellite Vs Falcons Eye

Covellite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Covellite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Covellite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.