Milk Opal and Dumortierite Physical Properties

Milk Opal

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

1.98-2.503.26-3.41

1 7.18

1.5 Fracture

Conchoidal

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

5.5-6.57-8.5

2 10

1.8 Chemical Composition

Not Available

AlAl₆O₃BSi₃O₁₈

Milk Opal and Dumortierite Chemical Formula

While comparing Milk Opal 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 Milk Opal and Dumortierite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Milk Opal and Dumortierite Specific Gravity

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