Alexandrite and Papagoite Physical Properties

Alexandrite

Papagoite

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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

3.69-3.813.25

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic

1.6 Cleavage

1,1 ; 3,2.

Imperfect in one direction

1.7 Mohs Hardness

8.55-5.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Alexandrite and Papagoite Chemical Formula

While comparing Alexandrite and Papagoite 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 Papagoite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Alexandrite and Papagoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.25 whereas that of Papagoite is 3.25.