Epidote and Hibonite Physical Properties

Epidote

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

3.25-3.503.84

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Fibrous

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

1.6 Cleavage

{001} perfect and {100} imperfect

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

6-77.5-8

2 10

1.8 Chemical Composition

CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Epidote and Hibonite Chemical Formula

While comparing Epidote 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 Epidote and Hibonite chemical formula.

Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Epidote and Hibonite Specific Gravity

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