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Dravite

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Edenite



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Dravite and Edenite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.03-3.18
3.05-3.37
1.5 Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal
1.6 Cleavage
{???} Indistinct
Good on (110)
1.7 Mohs Hardness
7-7.5
5-6
1.8 Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
NaCa2Mg5Si7AlO22(OH)2

Dravite and Edenite Chemical Formula

While comparing Dravite and Edenite 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 Dravite and Edenite chemical formula.

  • Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  • Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2

Dravite and Edenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Edenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Edenite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.05-3.37 whereas that of Edenite is 3.05-3.37.