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