Grandidierite and Apophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.00
2.30-2.50
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect
Perfect on (001)
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Grandidierite and Apophyllite Chemical Formula
While comparing Grandidierite and Apophyllite 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 Grandidierite and Apophyllite chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Grandidierite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.