Dumortierite and Scolecite Physical Properties

Dumortierite

Scolecite

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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

3.26-3.412.20-2.23

1 7.18

1.5 Fracture

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

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

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

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

7-8.55-5.5

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Dumortierite and Scolecite Chemical Formula

While comparing Dumortierite and Scolecite 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 Scolecite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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Dumortierite and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.