Alexandrite and Fluorite Physical Properties

Alexandrite

Fluorite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.813.00-3.25

1 7.18

1.7 Fracture

Not Available

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.8 Cleavage

1,1 ; 3,2.

Octahedral, perfect on {111}, parting on {011}

1.9 Mohs Hardness

8.54

2 10

1.13 Chemical Composition

BeAl ₂ O ₄

CaF₂

Alexandrite and Fluorite Chemical Formula

While comparing Alexandrite and Fluorite 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 Fluorite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Fluorite- CaF₂

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Alexandrite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.