Emerald and Phlogopite Physical Properties

Emerald

Phlogopite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

2.67-2.782.78-2.85

1 7.18

1.5 Fracture

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

None, Uneven

1.6 Cleavage

Imperfect on the [0001]

Perfect basal (001)

1.7 Mohs Hardness

7.5-82-2.5

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

Not Available

Emerald and Phlogopite Chemical Formula

While comparing Emerald and Phlogopite 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 Phlogopite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆

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Emerald and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.