Creedite and Periclase Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.70
3.7-3.9
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Brittle
Cleavage
Perfect on {100}
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Creedite and Periclase Chemical Formula
While comparing Creedite and Periclase 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 Creedite and Periclase chemical formula.
- Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
- Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Creedite and Periclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Creedite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Creedite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.