Alexandrite and Inderite Physical Properties

Alexandrite

Inderite

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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

3.69-3.811.79

1 7.18

1.5 Fracture

Not Available

Uneven

1.6 Cleavage

1,1 ; 3,2.

{110} Good

1.7 Mohs Hardness

8.52.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Alexandrite and Inderite Chemical Formula

While comparing Alexandrite and Inderite 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 Inderite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Inderite- MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Alexandrite and Inderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Inderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Inderite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 1.79 whereas that of Inderite is 1.79.