Adularia and Dumortierite Physical Properties

Adularia

Dumortierite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.613.26-3.41

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

67-8.5

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

AlAl₆O₃BSi₃O₁₈

Adularia and Dumortierite Chemical Formula

While comparing Adularia and Dumortierite 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 Adularia and Dumortierite chemical formula.

Chemical formula of Adularia- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Adularia and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adularia and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adularia and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Adularia is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.