Beryllonite and Plumbogummite Physical Properties

Beryllonite

Plumbogummite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.79-2.874.014

1 7.18

1.5 Fracture

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

Uneven, Conchoidal

1.6 Cleavage

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

None

1.7 Mohs Hardness

5.5-64-5

2 10

1.8 Chemical Composition

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

Not Available

Beryllonite and Plumbogummite Chemical Formula

While comparing Beryllonite and Plumbogummite 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 Plumbogummite chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Beryllonite and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 4.014 whereas that of Plumbogummite is 4.014.