Dumortierite and Dioptase Physical Properties

Dumortierite

Dioptase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.413.25-3.35

1 7.18

1.5 Fracture

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

Conchoidal, 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}

Perfect in three directions

1.7 Mohs Hardness

7-8.55

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Dumortierite and Dioptase Chemical Formula

While comparing Dumortierite and Dioptase 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 Dioptase chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dumortierite and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.