Emerald and Anhydrite Physical Properties

Emerald

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Hard

Specific Gravity

2.67-2.782.90-2.98

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Conchoidal

Cleavage

Imperfect on the [0001]

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

7.5-83.5

2 10

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Chemical Composition

Be₃Al₂SiO₆

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Emerald and Anhydrite Chemical Formula

While comparing Emerald and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Emerald and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.