Ettringite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Partially soluble in water
insoluble
Durability
Not Available
Not Available
Specific Gravity
1.77
3.30-3.40
Fracture
Not Available
Conchoidal, Brittle, Conchoidal
Cleavage
Perfect on {10 1 0}
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
2-2.5
6.5-7
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Ettringite and Diaspore Chemical Formula
While comparing Ettringite and Diaspore 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 Diaspore chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Ettringite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.