Dumortierite and Fluorite Physical Properties

Dumortierite

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

3.26-3.413.00-3.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Distinct on {100}, poor on {110}; parting on {001}

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

1.7 Mohs Hardness

7-8.54

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

CaF₂

Dumortierite and Fluorite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Fluorite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Fluorite- CaF₂

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Dumortierite and Fluorite Specific Gravity

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