Brucite and Hibonite Physical Properties

Brucite

Hibonite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.393.84

1 7.18

1.5 Fracture

Irregular

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

1.6 Cleavage

Perfect on {0001}

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

2.57.5-8

2 10

1.8 Chemical Composition

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

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

Brucite and Hibonite Chemical Formula

While comparing Brucite 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 Brucite and Hibonite chemical formula.

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

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Brucite and Hibonite Specific Gravity

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