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Taaffeite
Taaffeite

Selenite
Selenite



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Taaffeite
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Selenite

Taaffeite and Selenite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.60-3.61-9999
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

Imperfect/fair/absent
Perfect

Mohs Hardness

8-8.52
2 10
👆🏻

Chemical Composition

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
CaSO4·2H2O

Taaffeite and Selenite Chemical Formula

While comparing Taaffeite and Selenite 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 Taaffeite and Selenite chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Selenite- CaSO4·2H2O

Taaffeite and Selenite Specific Gravity

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