Poudretteite and Emerald Physical Properties

Poudretteite

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

2.51-2.532.67-2.78

1 7.18

1.5 Fracture

Conchoidal, Splintery

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

1.6 Cleavage

None

Imperfect on the [0001]

1.7 Mohs Hardness

57.5-8

2 10

1.8 Chemical Composition

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Be₃Al₂SiO₆

Poudretteite and Emerald Chemical Formula

While comparing Poudretteite 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 Poudretteite and Emerald chemical formula.

Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Emerald- Be₃Al₂SiO₆

Compare Violet Gemstones

Poudretteite Vs Rubellite

Poudretteite Vs Rutilated Quartz

Poudretteite Vs Sapphire

Poudretteite and Emerald Specific Gravity

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