Dumortierite and Brucite Physical Properties

Dumortierite

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.412.39

1 7.18

1.5 Fracture

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

Irregular

1.6 Cleavage

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

Perfect on {0001}

1.7 Mohs Hardness

7-8.52.5

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Dumortierite and Brucite Chemical Formula

While comparing Dumortierite and Brucite 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 Brucite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Dumortierite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.39 whereas that of Brucite is 2.39.