Hardystonite and Emerald Physical Properties

Hardystonite

Emerald

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

3.396-3.4432.67-2.78

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

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

Imperfect on the [0001]

1.7 Mohs Hardness

3-47.5-8

2 10

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Hardystonite and Emerald Chemical Formula

While comparing Hardystonite 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 Hardystonite and Emerald chemical formula.

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

Compare White Gemstones

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Hardystonite and Emerald Specific Gravity

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