Indicolite Blue Tourmaline and Dumortierite Physical Properties

Indicolite Blue Tourmaline

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

3.05-3.113.26-3.41

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

7-7.57-8.5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

AlAl₆O₃BSi₃O₁₈

Indicolite Blue Tourmaline and Dumortierite Chemical Formula

While comparing Indicolite Blue Tourmaline 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 Indicolite Blue Tourmaline and Dumortierite chemical formula.

Chemical formula of Indicolite Blue Tourmaline- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Indicolite Blue Tourmaline and Dumortierite Specific Gravity

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