Alexandrite and Anorthoclase Physical Properties

Alexandrite

Anorthoclase

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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

3.69-3.812.56-2.62

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

1,1 ; 3,2.

From the Greek for oblique and fracture, descriptive of the cleavage

1.7 Mohs Hardness

8.56-6.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Alexandrite and Anorthoclase Chemical Formula

While comparing Alexandrite and Anorthoclase 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 Anorthoclase chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Alexandrite and Anorthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.