Beryllonite and Spinel Physical Properties

Beryllonite

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.1 Solubility

Not Available

none

1.4 Durability

Not Available

1.6 Specific Gravity

2.79-2.873.64-3.66

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

None, but may exhibit slight parting

1.7 Mohs Hardness

5.5-68

2 10

1.16 Chemical Composition

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

MgAl₂O₄

Beryllonite and Spinel Chemical Formula

While comparing Beryllonite and Spinel 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 Spinel chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Spinel- MgAl₂O₄

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Beryllonite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.