Creedite and Sard Physical Properties
Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.70
2.58-2.63
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {100}
Not Available
Mohs Hardness
4.5
6.5-7
Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
SiO 2Ulrich Henn and Claudio C.
Creedite and Sard Chemical Formula
While comparing Creedite and Sard 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 Sard chemical formula.
- Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Creedite and Sard Specific Gravity
Another important criteria for qualitative analysis of gemstones is Creedite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Sard Optical Properties during the identification of gemstone. Specific gravity of Creedite is 2.58-2.63 whereas that of Sard is 2.58-2.63.
