Alunite and Serpentine Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.9
2.44-2.62
Fracture
Conchoidal, Uneven
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
On {0001}, perfect
Not Available
Mohs Hardness
3.5-4
2.5-5.5
Chemical Composition
KAl3(SO4)2(OH)6
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Alunite and Serpentine Chemical Formula
While comparing Alunite and Serpentine 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 Alunite and Serpentine chemical formula.
- Chemical formula of Alunite- KAl3(SO4)2(OH)6
- Chemical formula of Serpentine- H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Alunite and Serpentine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Alunite and Serpentine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Serpentine Optical Properties during the identification of gemstone. Specific gravity of Alunite is 2.44-2.62 whereas that of Serpentine is 2.44-2.62.