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Elbaite
Elbaite

Danburite
Danburite



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Elbaite
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Danburite

Elbaite and Danburite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-3.102.97-3.03
1 7.18
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Fracture

Uneven, Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

Poor/indistinct on {1120} and {1011}
{001} Poor

Mohs Hardness

77
2 10
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Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Elbaite and Danburite Chemical Formula

While comparing Elbaite and Danburite 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 Elbaite and Danburite chemical formula.

  • Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
  • Chemical formula of Danburite- CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Elbaite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.