×

Herderite
Herderite

Blue John
Blue John



ADD
Compare
X
Herderite
X
Blue John

Herderite and Blue John Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.90-3.02
Subconchoidal, Conchoidal
Indistinct on {110}
5-5.5
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Herderite and Blue John Chemical Formula

While comparing Herderite and Blue John 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 Herderite and Blue John chemical formula.

    >>

Herderite and Blue John Specific Gravity

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