Alexandrite and Beudantite Physical Properties

Alexandrite

Beudantite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.814.48

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

1,1 ; 3,2.

distinct; good on {0001}

1.7 Mohs Hardness

8.53.5-4.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

PbFe+++3(AsO4)(SO4)(OH)6

Alexandrite and Beudantite Chemical Formula

While comparing Alexandrite and Beudantite 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 Alexandrite and Beudantite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Beudantite- PbFe+++3(AsO4)(SO4)(OH)6

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Alexandrite and Beudantite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Beudantite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Beudantite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 4.48 whereas that of Beudantite is 4.48.