Adamite and Hibonite Physical Properties

Adamite

Hibonite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.32-4.483.84

1 7.18

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Fracture

Uneven, Subconchoidal, Conchoidal

Subconchoidal, Conchoidal

Cleavage

{101}, good; {010}, poor

{0001} good, {10 1 0} parting

Mohs Hardness

3.57.5-8

2 10

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Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

(Ca,Ce)(Al,Ti,Mg)12O19

Adamite and Hibonite Chemical Formula

While comparing Adamite 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 Adamite and Hibonite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Adamite and Hibonite Specific Gravity

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