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Blue John
Blue John

Actinolite
Actinolite



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Blue John
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Actinolite

Blue John and Actinolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
3.00
Uneven, Splintery
perfect along {110}.
5-6
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Blue John and Actinolite Chemical Formula

While comparing Blue John and Actinolite 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 Actinolite chemical formula.

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Blue John and Actinolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Actinolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John Vs Actinolite during the identification of gemstone. Specific gravity of Blue John is whereas that of Actinolite is .