Charlesite and Starlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.79
3.91-4.73
Fracture
Irregular/uneven, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {10bar10}
Not Available
Mohs Hardness
2.5
6.5-7.5
Chemical Composition
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Charlesite and Starlite Chemical Formula
While comparing Charlesite and Starlite 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 Charlesite and Starlite chemical formula.
- Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
- Chemical formula of Starlite- ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Charlesite and Starlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Charlesite and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Starlite Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 3.91-4.73 whereas that of Starlite is 3.91-4.73.