Magnesite and Prehnite Physical Properties
Solubility
Effervesces in hot HCl
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.92-3.12
2.80-2.95
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
[10 1 1] perfect
Distinct on [001]
Mohs Hardness
3.5-4.5
6-6.5
Chemical Composition
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al2Si3O12(OH)
Magnesite and Prehnite Chemical Formula
While comparing Magnesite 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 Magnesite and Prehnite chemical formula.
- Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
Magnesite and Prehnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Magnesite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.