Beryllonite and Oligoclase Physical Properties

Beryllonite

Oligoclase

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.79-2.872.62-2.67

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces

From the Greek, oligos and kasein, little cleavage.

Mohs Hardness

5.5-66-6.5

2 10

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Chemical Composition

NaBePO 4Michael 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)

Beryllonite and Oligoclase Chemical Formula

While comparing Beryllonite 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 Beryllonite and Oligoclase chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael 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 Colorless Gems

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Beryllonite Vs Herderite

Beryllonite and Oligoclase Specific Gravity

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