Mellite and Grandidierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.58-1.60
2.85-3.00
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
{011} Imperfect
Perfect
Chemical Composition
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Mellite and Grandidierite Chemical Formula
While comparing Mellite 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 Mellite and Grandidierite chemical formula.
- Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Mellite and Grandidierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mellite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mellite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Mellite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.