Charlesite and Boulder Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.79
1.98-2.25
Fracture
Irregular/uneven, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {10bar10}
Not Available
Chemical Composition
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
SiO 2 + H 2OUlrich Henn and Claudio C.
Charlesite and Boulder Opal Chemical Formula
While comparing Charlesite and Boulder Opal 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 Boulder Opal chemical formula.
- Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
- Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Charlesite and Boulder Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Charlesite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.