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Anhydrite
Anhydrite

Demantoid
Demantoid



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Anhydrite
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Demantoid

Anhydrite and Demantoid Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-2.983.77-3.95
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

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

Mohs Hardness

3.56.5
2 10
👆🏻

Chemical Composition

CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Anhydrite and Demantoid Chemical Formula

While comparing Anhydrite and Demantoid 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 Demantoid chemical formula.

  • Chemical formula of Anhydrite- CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
  • Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Anhydrite and Demantoid Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Demantoid Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Demantoid Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 3.77-3.95 whereas that of Demantoid is 3.77-3.95.