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Dravite
Dravite

Simpsonite
Simpsonite



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Dravite
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Simpsonite

Dravite and Simpsonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.03-3.18Not Available
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
{???} Indistinct
None
1.7 Mohs Hardness
7-7.57-7.5
Amber
2 10
1.8 Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

Dravite and Simpsonite Chemical Formula

While comparing Dravite and Simpsonite 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 Simpsonite 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 Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

Dravite and Simpsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Simpsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Simpsonite Optical Properties during the identification of gemstone. Specific gravity of Dravite is Not Available whereas that of Simpsonite is Not Available.