Blue John and Adamite Physical Properties

Blue John

Adamite

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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

3.00-3.254.32-4.48

1 7.18

1.5 Fracture

Not Available

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

{101}, good; {010}, poor

1.7 Mohs Hardness

Not Available3.5

2 10

1.8 Chemical Composition

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

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

Blue John and Adamite Chemical Formula

While comparing Blue John and Adamite 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 Adamite chemical formula.

Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

Compare Blue Gemstones

Blue John Vs Ceylonite

Blue John Vs Chrome-Chalcedony

Blue John Vs Catapleiite

Blue John and Adamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Adamite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 4.32-4.48 whereas that of Adamite is 4.32-4.48.