Pectolite and Scapolite Physical Properties
Specific Gravity
2.74-2.90
2.58-2.74
Fracture
Uneven, Splintery
ConchoidalWalter Schumann, Splintery
Cleavage
Perfect on {100} and {001}
{100} Distinct, {110} Distinct
Mohs Hardness
4.5-5
5.5-6
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
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
Pectolite and Scapolite Chemical Formula
While comparing Pectolite and Scapolite 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 Pectolite and Scapolite chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- 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
Pectolite and Scapolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.