Anhydrite and Emerald Physical Properties

Anhydrite

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

2.90-2.98

2.67-2.78

1.5 Fracture

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

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

Imperfect on the [0001]

1.7 Mohs Hardness

3.5

7.5-8

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Anhydrite and Emerald Chemical Formula

While comparing Anhydrite 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 Anhydrite and Emerald chemical formula.

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

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Anhydrite and Emerald Specific Gravity

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