Hyalite and Prehnite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
Not Available
2.80-2.95
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Not Available
Distinct on [001]
Mohs Hardness
5.5-6.5
6-6.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Ca2Al2Si3O12(OH)
Hyalite and Prehnite Chemical Formula
While comparing Hyalite 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 Hyalite and Prehnite chemical formula.
- Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
Hyalite and Prehnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hyalite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hyalite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Hyalite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.