Adularia and Emerald Physical Properties

Adularia

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

2.54-2.612.67-2.78

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

67.5-8

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Be₃Al₂SiO₆

Adularia and Emerald Chemical Formula

While comparing Adularia 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 Adularia and Emerald chemical formula.

Chemical formula of Adularia- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Emerald- Be₃Al₂SiO₆

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Adularia and Emerald Specific Gravity

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