Hibonite and Brucite Physical Properties

Hibonite

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.842.39

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Irregular

1.6 Cleavage

{0001} good, {10 1 0} parting

Perfect on {0001}

1.7 Mohs Hardness

7.5-82.5

2 10

1.8 Chemical Composition

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

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Hibonite and Brucite Chemical Formula

While comparing Hibonite and Brucite 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 Brucite chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hibonite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibonite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 2.39 whereas that of Brucite is 2.39.