Scapolite and Pyrope Physical Properties
Solubility
-
insoluble in water
Specific Gravity
2.58-2.74
3.62-3.87
Fracture
ConchoidalWalter Schumann, Splintery
Conchoidal
Cleavage
{100} Distinct, {110} Distinct
None
Mohs Hardness
5.5-6
7-7.5
Chemical Composition
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Scapolite and Pyrope Chemical Formula
While comparing Scapolite and Pyrope 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 Scapolite and Pyrope chemical formula.
- Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Scapolite and Pyrope Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scapolite and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Scapolite is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.