×

Blue John
Blue John
☒

Akoya pearl
Akoya pearl
☒



ADD ⊕
Compare
X
Blue John
X
Akoya pearl

Blue John and Akoya pearl 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)
 
-
-
-
-9999
-
None
-9999
CaCO3

Blue John and Akoya pearl Chemical Formula

While comparing Blue John and Akoya pearl 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 Akoya pearl chemical formula.

    >>

Blue John and Akoya pearl Specific Gravity

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