Prehnite and Powellite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
4.23
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Distinct on [001]
{111} Distinct
Mohs Hardness
6-6.5
3.5-4
Chemical Composition
Ca2Al2Si3O12(OH)
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Prehnite and Powellite Chemical Formula
While comparing Prehnite and Powellite 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 Prehnite and Powellite chemical formula.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
- Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Prehnite and Powellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prehnite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 4.23 whereas that of Powellite is 4.23.