Simpsonite and Grandidierite Physical Properties
Tenacity
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Solubility
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Durability
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Specific Gravity
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2.85-3.00
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Chemical Composition
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Simpsonite and Grandidierite Chemical Formula
While comparing Simpsonite 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 Simpsonite and Grandidierite chemical formula.
- Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Simpsonite and Grandidierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Simpsonite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.