Sard and Prehnite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.58-2.63
2.80-2.95
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Not Available
Distinct on [001]
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
Ca2Al2Si3O12(OH)
Sard and Prehnite Chemical Formula
While comparing Sard and Prehnite 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 Sard and Prehnite chemical formula.
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
Sard and Prehnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sard and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.