Alexandrite and Leucite Physical Properties

Alexandrite

Leucite

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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

3.69-3.812.45-2.50

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

1,1 ; 3,2.

Poor on {110}

1.7 Mohs Hardness

8.55.5-6

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Alexandrite and Leucite Chemical Formula

While comparing Alexandrite and Leucite 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 Leucite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Alexandrite and Leucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Leucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Leucite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.45-2.50 whereas that of Leucite is 2.45-2.50.