Alexandrite and Diaspore Physical Properties

Alexandrite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.813.30-3.40

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

1,1 ; 3,2.

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

8.56.5-7

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Alexandrite and Diaspore Chemical Formula

While comparing Alexandrite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Gems for Scorpio

Alexandrite Vs Gahnospinel

Alexandrite Vs Fluorite

Alexandrite Vs Citrine

Alexandrite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.