Dumortierite and Steatite Physical Properties

Dumortierite

Steatite

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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

3.26-3.412.20-2.80

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

7-8.5Not Available

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

Dumortierite and Steatite Chemical Formula

While comparing Dumortierite and Steatite 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 Steatite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Steatite- Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

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Dumortierite and Steatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Steatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Steatite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.20-2.80 whereas that of Steatite is 2.20-2.80.