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Ettringite
Ettringite

Indicolite Blue Tourmaline
Indicolite Blue Tourmaline



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Ettringite
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Indicolite Blue Tourmaline

Ettringite and Indicolite Blue Tourmaline Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Partially soluble in water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.773.05-3.11
Amber
1 7.18
1.5 Fracture
Not Available
Not Available
1.6 Cleavage
Perfect on {10 1 0}
Not Available
1.7 Mohs Hardness
2-2.57-7.5
Amber
2 10
1.8 Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
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.

Ettringite and Indicolite Blue Tourmaline Chemical Formula

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

  • Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
  • 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.

Ettringite and Indicolite Blue Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Indicolite Blue Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Indicolite Blue Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.05-3.11 whereas that of Indicolite Blue Tourmaline is 3.05-3.11.