Sardonyx and Emerald Physical Properties

Sardonyx

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.55-2.702.67-2.78

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Imperfect on the [0001]

1.7 Mohs Hardness

6.5-77.5-8

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

Be₃Al₂SiO₆

Sardonyx and Emerald Chemical Formula

While comparing Sardonyx 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 Sardonyx and Emerald chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Emerald- Be₃Al₂SiO₆

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Sardonyx and Emerald Specific Gravity

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