×

Blue John
Blue John

Pyrope
Pyrope



ADD
Compare
X
Blue John
X
Pyrope

Blue John and Pyrope Physical Properties

Add ⊕
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)
 
-
insoluble in water
-
3.62-3.87
Conchoidal
None
7-7.5
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Blue John and Pyrope Chemical Formula

While comparing Blue John and Pyrope 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 Pyrope chemical formula.

    >>

Blue John and Pyrope Specific Gravity

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