Blue John and Beryl Physical Properties

Blue John

Beryl

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.25

2.60-2.90

1.5 Fracture

Not Available

Uneven, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Uneven, Gems, Brittle

1.6 Cleavage

Not Available

Imperfect on {0001}

1.7 Mohs Hardness

Not Available

7.5-8

1.8 Chemical Composition

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

Be₃Al₂Si₆O₁₈

Blue John and Beryl Chemical Formula

While comparing Blue John and Beryl 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 Beryl chemical formula.

Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Beryl- Be₃Al₂Si₆O₁₈

Compare Blue Gemstones

Blue John Vs Ceylonite

Blue John Vs Catapleiite

Blue John Vs Chrome-Chalcedony

Blue John and Beryl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Beryl Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.60-2.90 whereas that of Beryl is 2.60-2.90.