Rossmanite and Hibonite Physical Properties

Rossmanite

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

33.84

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

None

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Rossmanite and Hibonite Chemical Formula

While comparing Rossmanite 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 Rossmanite and Hibonite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)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

Compare Gems Found in America

Rossmanite Vs Scolecite

Rossmanite Vs Serandite

Rossmanite Vs Serpentine

Rossmanite and Hibonite Specific Gravity

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