Emerald and Hardystonite Physical Properties

Emerald

Hardystonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

2.67-2.783.396-3.443

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

Imperfect on the [0001]

[001] good, [100] and [110] fair

1.7 Mohs Hardness

7.5-83-4

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Emerald and Hardystonite Chemical Formula

While comparing Emerald and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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Emerald and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.