Emerald and Petoskey Stone Physical Properties

Emerald

Petoskey Stone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

2.67-2.78Not Available

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

Not Available

1.6 Cleavage

Imperfect on the [0001]

Not Available

1.7 Mohs Hardness

7.5-87

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

Not Available

Emerald and Petoskey Stone Chemical Formula

While comparing Emerald 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 Emerald and Petoskey Stone chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆

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Emerald and Petoskey Stone Specific Gravity

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