Stibiotantalite and Beryllonite Physical Properties

Stibiotantalite

Beryllonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.79-2.87

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{???} Perfect

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

1.7 Mohs Hardness

5.5-65.5-6

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

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

Stibiotantalite and Beryllonite Chemical Formula

While comparing Stibiotantalite and Beryllonite 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 Stibiotantalite and Beryllonite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Stibiotantalite and Beryllonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.