Diaspore and Emerald Physical Properties

Diaspore

Emerald

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Physical Properties

Tenacity

Very brittle

Solubility

insoluble

Durability

Hard

Specific Gravity

3.30-3.402.67-2.78

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

{010} perfect, {110} distinct, {100} in traces

Imperfect on the [0001]

Mohs Hardness

6.5-77.5-8

2 10

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Chemical Composition

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Be₃Al₂SiO₆

Diaspore and Emerald Chemical Formula

While comparing Diaspore 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 Diaspore and Emerald chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Emerald- Be₃Al₂SiO₆

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Diaspore and Emerald Specific Gravity

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