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Austinite
Austinite

Hibonite
Hibonite



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Austinite
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Hibonite

Austinite and Hibonite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.123.84
1 7.18
👆🏻

Fracture

Uneven
Subconchoidal, Conchoidal

Cleavage

Good in two directions parallel to the prism faces {110}
{0001} good, {10 1 0} parting

Mohs Hardness

4-4.57.5-8
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
(Ca,Ce)(Al,Ti,Mg)12O19

Austinite and Hibonite Chemical Formula

While comparing Austinite and Hibonite 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 Austinite and Hibonite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

Austinite and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.84 whereas that of Hibonite is 3.84.