Pectolite and Purpurite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.74-2.90
3.2-3.4
Fracture
Uneven, Gemstones (2009), Splintery
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on {100} and {001}
[100] [001] perfect
Mohs Hardness
4.5-5
4-4.5
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pectolite and Purpurite Chemical Formula
While comparing Pectolite and Purpurite 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 Purpurite chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pectolite and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.