Phlogopite and Emerald Physical Properties

Phlogopite

Emerald

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.78-2.852.67-2.78

1 7.18

1.5 Fracture

None, Uneven

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

1.6 Cleavage

Perfect basal (001)

Imperfect on the [0001]

1.7 Mohs Hardness

2-2.57.5-8

2 10

1.8 Chemical Composition

Not Available

Be₃Al₂SiO₆

Phlogopite and Emerald Chemical Formula

While comparing Phlogopite and Emerald 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 Phlogopite and Emerald chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆

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Phlogopite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.