Epidote and Spinel Physical Properties

Epidote

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.503.64-3.66

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} perfect and {100} imperfect

None, but may exhibit slight parting

1.7 Mohs Hardness

6-78

2 10

1.8 Chemical Composition

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

MgAl₂O₄

Epidote and Spinel Chemical Formula

While comparing Epidote and Spinel 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 Spinel 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 Spinel- MgAl₂O₄

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Epidote and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Epidote and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Spinel Optical Properties during the identification of gemstone. Specific gravity of Epidote is 3.64-3.66 whereas that of Spinel is 3.64-3.66.