Vesuvianite and Blue John Physical Properties

Vesuvianite

Blue John

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Vesuvianite is virtually insolouble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.433.00-3.25

1 7.18

1.5 Fracture

Conchoidal, Brittle

Not Available

1.6 Cleavage

Poor on {110} and {100} very poor on {001}

Not Available

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Not Available

CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Vesuvianite and Blue John Chemical Formula

While comparing Vesuvianite 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 Vesuvianite and Blue John chemical formula.

Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Vesuvianite Vs Amber

Vesuvianite Vs Adamite

Vesuvianite and Blue John Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vesuvianite and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vesuvianite and Blue John Optical Properties during the identification of gemstone. Specific gravity of Vesuvianite is 3.00-3.25 whereas that of Blue John is 3.00-3.25.