Alexandrite and Scolecite Physical Properties

Alexandrite

Scolecite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.812.20-2.23

1 7.18

1.5 Fracture

Not Available

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

1,1 ; 3,2.

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

8.55-5.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Alexandrite and Scolecite Chemical Formula

While comparing Alexandrite and Scolecite 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 Scolecite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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Alexandrite and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.