Sylvite and Emerald Physical Properties

Sylvite

Emerald

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

1.993

2.67-2.78

1.5 Fracture

Uneven, Brittle

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

1.6 Cleavage

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

Imperfect on the [0001]

1.7 Mohs Hardness

2.5

7.5-8

1.8 Chemical Composition

Not Available

Be₃Al₂SiO₆

Sylvite and Emerald Chemical Formula

While comparing Sylvite 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 Sylvite and Emerald chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆

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Sylvite and Emerald Specific Gravity

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