Grandidierite and Prehnite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.00
2.80-2.95
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Perfect
Distinct on [001]
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Ca2Al2Si3O12(OH)
Grandidierite and Prehnite Chemical Formula
While comparing Grandidierite and Prehnite 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 Prehnite chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
Grandidierite and Prehnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.