Sunstone and Ettringite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
2.62-2.65
1.77
Fracture
Gemstones of the world (2001)
Not Available
Cleavage
001
Perfect on {10 1 0}
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Sunstone and Ettringite Chemical Formula
While comparing Sunstone and Ettringite 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 Sunstone and Ettringite chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Sunstone and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 1.77 whereas that of Ettringite is 1.77.