×

Blue John
Blue John

Star Ruby
Star Ruby



ADD
Compare
X
Blue John
X
Star Ruby

Blue John and Star Ruby Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
3.95-4.10
Uneven
None
-9999
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Blue John and Star Ruby Chemical Formula

While comparing Blue John and Star Ruby 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 Star Ruby chemical formula.

    >>

Blue John and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John Vs Star Ruby during the identification of gemstone. Specific gravity of Blue John is whereas that of Star Ruby is .