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Spinel
Spinel

Petoskey Stone
Petoskey Stone



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Spinel
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Petoskey Stone

Spinel and Petoskey Stone Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
none
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.64-3.66Not Available
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
1.6 Cleavage
None, but may exhibit slight parting
Not Available
1.7 Mohs Hardness
87
Amber
2 10
1.8 Chemical Composition
MgAl2O4
Not Available

Spinel and Petoskey Stone Chemical Formula

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

  • Chemical formula of Spinel- MgAl2O4
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Spinel and Petoskey Stone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Petoskey Stone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Petoskey Stone Optical Properties during the identification of gemstone. Specific gravity of Spinel is Not Available whereas that of Petoskey Stone is Not Available.