Emerald and Sylvite Physical Properties

Emerald

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

2.67-2.781.993

1 7.18

1.5 Fracture

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

Uneven, Brittle

1.6 Cleavage

Imperfect on the [0001]

Perfect on [100], [010], [001]

1.7 Mohs Hardness

7.5-82.5

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

Not Available

Emerald and Sylvite Chemical Formula

While comparing Emerald and Sylvite 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 Sylvite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆

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Emerald and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 1.993 whereas that of Sylvite is 1.993.