Emerald and Chrysoprase Physical Properties

Emerald

Chrysoprase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

2.67-2.78

2.58-2.64

1.5 Fracture

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

Gems, Sixth Edition (2006)

1.6 Cleavage

Imperfect on the [0001]

None

1.7 Mohs Hardness

7.5-8

6.5-7

1.8 Chemical Composition

Be₃Al₂SiO₆

SiO₂ (with a high level of nickel impurities )

Emerald and Chrysoprase Chemical Formula

While comparing Emerald and Chrysoprase 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 Chrysoprase chemical formula.

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

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Emerald and Chrysoprase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.