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Petoskey Stone
Petoskey Stone

Kyanite
Kyanite



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Petoskey Stone
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Kyanite

Petoskey Stone and Kyanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
7
CaCO3
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Petoskey Stone and Kyanite Chemical Formula

While comparing Petoskey Stone and Kyanite 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 Petoskey Stone and Kyanite chemical formula.

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Petoskey Stone and Kyanite Specific Gravity

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