Pargasite and Petoskey Stone Physical Properties

Pargasite

Petoskey Stone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.26Not Available

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Not Available

1.6 Cleavage

{110} perfect

Not Available

1.7 Mohs Hardness

5-67

2 10

1.8 Chemical Composition

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Pargasite and Petoskey Stone Chemical Formula

While comparing Pargasite 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 Pargasite and Petoskey Stone chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pargasite and Petoskey Stone Specific Gravity

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