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Taaffeite
Taaffeite

Austinite
Austinite



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Taaffeite
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Austinite

Taaffeite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

3.60-3.614.12
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

Imperfect/fair/absent
Good in two directions parallel to the prism faces {110}

Mohs Hardness

8-8.54-4.5
2 10
👆🏻

Chemical Composition

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
CaZn(AsO4)(OH)

Taaffeite and Austinite Chemical Formula

While comparing Taaffeite and Austinite 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 Austinite chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Taaffeite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Taaffeite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 4.12 whereas that of Austinite is 4.12.