Blue John and Tremolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
2.95-3.07
Fracture
Not Available
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Not Available
Perfect on {110} at 56° and 124°; partings on {010} and {100}
Mohs Hardness
Not Available
5-6
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Blue John and Tremolite Chemical Formula
While comparing Blue John and Tremolite 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 Blue John and Tremolite chemical formula.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Tremolite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Blue John and Tremolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Blue John and Tremolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Tremolite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.95-3.07 whereas that of Tremolite is 2.95-3.07.