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Pearl
Pearl

Anhydrite
Anhydrite



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Pearl
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Anhydrite

Pearl and Anhydrite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.60-2.852.90-2.98
1 7.18
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Fracture

-
Conchoidal

Cleavage

none
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

2.5-4.53.5
2 10
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Chemical Composition

CaCO3
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Pearl and Anhydrite Chemical Formula

While comparing Pearl 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 Pearl and Anhydrite chemical formula.

  • Chemical formula of Pearl- CaCO3
  • Chemical formula of Anhydrite- CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Pearl and Anhydrite Specific Gravity

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