Verdite and Dumortierite Physical Properties

Verdite

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

2.80-3.03.26-3.41

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{110} Good

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

1.7 Mohs Hardness

37-8.5

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

AlAl₆O₃BSi₃O₁₈

Verdite and Dumortierite Chemical Formula

While comparing Verdite 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 Verdite and Dumortierite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Verdite and Dumortierite Specific Gravity

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