Anhydrite and Esperite Physical Properties

Anhydrite

Esperite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.984.28-4.42

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic

1.6 Cleavage

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

Distinct on [010] and [100] poor on [101]

1.7 Mohs Hardness

3.55-5.5

2 10

1.8 Chemical Composition

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

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Anhydrite and Esperite Chemical Formula

While comparing Anhydrite and Esperite 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 Esperite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

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Anhydrite and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Esperite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 4.28-4.42 whereas that of Esperite is 4.28-4.42.