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Beryllonite
Beryllonite

Feldspar
Feldspar



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Beryllonite
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Feldspar

Beryllonite and Feldspar Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.79-2.872.56-2.75
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

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

Mohs Hardness

5.5-66-6.5
2 10
👆🏻

Chemical Composition

NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
KAlSi3O8

Beryllonite and Feldspar Chemical Formula

While comparing Beryllonite and Feldspar 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 Feldspar chemical formula.

  • Chemical formula of Beryllonite- NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Feldspar- KAlSi3O8

Beryllonite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.