Powellite and Ettringite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
4.23
1.77
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Not Available
Cleavage
{111} Distinct
Perfect on {10 1 0}
Mohs Hardness
3.5-4
2-2.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Powellite and Ettringite Chemical Formula
While comparing Powellite 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 Powellite and Ettringite chemical formula.
- Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Powellite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Powellite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Powellite is 1.77 whereas that of Ettringite is 1.77.