Hibonite and Achroite Physical Properties

Hibonite

Achroite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.84

Subconchoidal, Conchoidal

{0001} good, {10 1 0} parting

7.5-8

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

2.90-3.40

Uneven, ConchoidalWalter Schumann

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Hibonite and Achroite Chemical Formula

While comparing Hibonite and Achroite 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 Hibonite and Achroite chemical formula.

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Hibonite and Achroite Specific Gravity

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