Sphene and Alexandrite Physical Properties

Sphene

Alexandrite

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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

Not Available3.69-3.81

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

Not Available

1,1 ; 3,2.

1.7 Mohs Hardness

Not Available8.5

2 10

1.8 Chemical Composition

Not Available

BeAl ₂ O ₄

Sphene and Alexandrite Chemical Formula

While comparing Sphene and Alexandrite 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 Sphene and Alexandrite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Sphene and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphene and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphene and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Sphene is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.