Wernerite and Dumortierite Physical Properties

Wernerite

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

2.50-2.803.26-3.41

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5-6.57-8.5

2 10

1.8 Chemical Composition

Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)

AlAl₆O₃BSi₃O₁₈

Wernerite and Dumortierite Chemical Formula

While comparing Wernerite 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 Wernerite and Dumortierite chemical formula.

Chemical formula of Wernerite- Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Wernerite and Dumortierite Specific Gravity

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