Dumortierite and Orthoclase Physical Properties

Dumortierite

Orthoclase

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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

3.26-3.412.54-2.61

1 7.18

1.5 Fracture

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

Gems, Uneven

1.6 Cleavage

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

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

7-8.56

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Orthoclase Chemical Formula

While comparing Dumortierite and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dumortierite and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.