Periclase and Ettringite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
3.7-3.9
1.77
Fracture
Conchoidal, Brittle
Not Available
Cleavage
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Perfect on {10 1 0}
Mohs Hardness
5.5-6
2-2.5
Chemical Composition
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Periclase and Ettringite Chemical Formula
While comparing Periclase 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 Periclase and Ettringite chemical formula.
- Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Periclase and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Periclase and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Periclase is 1.77 whereas that of Ettringite is 1.77.