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Taaffeite
Taaffeite

Grandidierite
Grandidierite



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Taaffeite
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Grandidierite

Taaffeite and Grandidierite 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
3.60-3.61
2.85-3.00
1.5 Fracture
Conchoidal
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
1.6 Cleavage
Imperfect/fair/absent
Perfect
1.7 Mohs Hardness
8-8.5
7.5
1.8 Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Taaffeite and Grandidierite Chemical Formula

While comparing Taaffeite and Grandidierite 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 Taaffeite and Grandidierite chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Taaffeite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Taaffeite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.