Alexandrite and Jeremejevite Physical Properties

Alexandrite

Jeremejevite

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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

3.69-3.813.28-3.31

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

1,1 ; 3,2.

None observed

1.7 Mohs Hardness

8.56.5-7.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

Alexandrite and Jeremejevite Chemical Formula

While comparing Alexandrite and Jeremejevite 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 Jeremejevite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

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Alexandrite and Jeremejevite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Jeremejevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Jeremejevite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.28-3.31 whereas that of Jeremejevite is 3.28-3.31.