Stolzite and Alexandrite Physical Properties

Stolzite

Alexandrite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

23.69-3.81

1 7.18

1.5 Fracture

Conchoidal, Uneven, Brittle

Not Available

1.6 Cleavage

Imperfect on {001}, indistinct on {011}

1,1 ; 3,2.

1.7 Mohs Hardness

2.5-38.5

2 10

1.8 Chemical Composition

Not Available

BeAl ₂ O ₄

Stolzite and Alexandrite Chemical Formula

While comparing Stolzite 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 Stolzite and Alexandrite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Stolzite and Alexandrite Specific Gravity

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