Beryl and Blue John Physical Properties

Beryl

Blue John

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.90

3.00-3.25

1.5 Fracture

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

Not Available

1.6 Cleavage

Imperfect on {0001}

Not Available

1.7 Mohs Hardness

7.5-8

Not Available

1.8 Chemical Composition

Be₃Al₂Si₆O₁₈

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

Beryl and Blue John Chemical Formula

While comparing Beryl 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 Beryl and Blue John chemical formula.

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

Compare Blue Gemstones

Beryl Vs Brucite

Beryl Vs Boulder Opal

Beryl Vs Boleite

Beryl and Blue John Specific Gravity

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