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Blue John
Blue John

Anglesite
Anglesite



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Blue John
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Anglesite

Blue John and Anglesite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.00-3.256.30-6.39
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.6 Cleavage
Not Available
[001] good, [210] distinct
1.7 Mohs Hardness
Not Available3-3.5
Amber
2 10
1.8 Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
PbSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Blue John and Anglesite Chemical Formula

While comparing Blue John and Anglesite 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 Anglesite chemical formula.

  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Anglesite- PbSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Blue John and Anglesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Anglesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Anglesite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 6.30-6.39 whereas that of Anglesite is 6.30-6.39.