Beryllonite and Sunstone Physical Properties

Beryllonite

Sunstone

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.79-2.872.62-2.65

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Gemstones of the world (2001)

1.6 Cleavage

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

001

1.7 Mohs Hardness

5.5-66

2 10

1.8 Chemical Composition

NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Beryllonite and Sunstone Chemical Formula

While comparing Beryllonite and Sunstone 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 Sunstone chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Beryllonite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.