Pyrrhotite and Alexandrite Physical Properties

Pyrrhotite

Alexandrite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.58-4.65

3.69-3.81

1.5 Fracture

Uneven

Not Available

1.6 Cleavage

Absent

1,1 ; 3,2.

1.7 Mohs Hardness

3.5-4.5

8.5

1.8 Chemical Composition

Not Available

BeAl ₂ O ₄

Pyrrhotite and Alexandrite Chemical Formula

While comparing Pyrrhotite 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 Pyrrhotite and Alexandrite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Pyrrhotite and Alexandrite Specific Gravity

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