Alexandrite and Langbeinite Physical Properties

Alexandrite

Langbeinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Slowly dissolves in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.81

Not Available

1.5 Fracture

Not Available

Conchoidal, Brittle

1.6 Cleavage

1,1 ; 3,2.

None

1.7 Mohs Hardness

8.5

3.5-4

1.8 Chemical Composition

BeAl ₂ O ₄

Not Available

Alexandrite and Langbeinite Chemical Formula

While comparing Alexandrite and Langbeinite 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 Langbeinite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Alexandrite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is Not Available whereas that of Langbeinite is Not Available.