Beryllonite and Jacobsite Physical Properties

Beryllonite

Jacobsite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.79-2.87

Conchoidal

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

5.5-6

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

4.76-5.03

Conchoidal

None

5.5-6.5

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Beryllonite and Jacobsite Chemical Formula

While comparing Beryllonite and Jacobsite 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 Jacobsite chemical formula.

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Beryllonite and Jacobsite Specific Gravity

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