Dumortierite and Langbeinite Physical Properties

Dumortierite

Langbeinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Slowly dissolves in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.41Not Available

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

7-8.53.5-4

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Not Available

Dumortierite and Langbeinite Chemical Formula

While comparing Dumortierite and Langbeinite 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 Langbeinite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Dumortierite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is Not Available whereas that of Langbeinite is Not Available.