Dravite and Hibonite Physical Properties

Dravite

Hibonite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.03-3.183.84

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Indistinct

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

7-7.57.5-8

2 10

1.8 Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Dravite and Hibonite Chemical Formula

While comparing Dravite 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 Dravite and Hibonite chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Dravite and Hibonite Specific Gravity

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