Home
Gemstones


Pectolite and Petalite Physical Properties


Petalite and Pectolite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.74-2.90   
2.40   

Fracture
Uneven, Gemstones (2009), Splintery   
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal   

Cleavage
Perfect on {100} and {001}   
Perfect on {001}, poor on {201} with 38.5° angle between the two   

Mohs Hardness
4.5-5   
6-6.5   

Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.   
LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
<< Astrology

Pectolite and Petalite Chemical Formula

While comparing Pectolite and Petalite 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 Petalite chemical formula.

Compare Colorless Gems

Pectolite and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Petalite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.40 whereas that of Petalite is 2.40.

Colorless Gems

Colorless Gems


Compare Colorless Gems