Chrysoprase and Emerald Physical Properties

Chrysoprase

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

2.58-2.642.67-2.78

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

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

1.6 Cleavage

None

Imperfect on the [0001]

1.7 Mohs Hardness

6.5-77.5-8

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

Be₃Al₂SiO₆

Chrysoprase and Emerald Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Emerald chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Emerald- Be₃Al₂SiO₆

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Chrysoprase and Emerald Specific Gravity

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