Prehnite and Poldervaartite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.91
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Handbook of mineralogy (2001)
Cleavage
Distinct on [001]
None
Mohs Hardness
6-6.5
Not Available
Chemical Composition
Ca2Al2Si3O12(OH)
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Prehnite and Poldervaartite Chemical Formula
While comparing Prehnite and Poldervaartite 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 Poldervaartite chemical formula.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Prehnite and Poldervaartite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prehnite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.91 whereas that of Poldervaartite is 2.91.