Epidote and Bustamite Physical Properties

Epidote

Bustamite

Add ⊕

Physical Properties

Tenacity

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.25-3.503.32-3.43

1 7.18

👆🏻

Fracture

Conchoidal, Fibrous

Conchoidal

Cleavage

{001} perfect and {100} imperfect

{100} perfect; {110} and {1 1 0} good; {010} poor

Mohs Hardness

6-75.5-6

2 10

👆🏻

Chemical Composition

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

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Epidote and Bustamite Chemical Formula

While comparing Epidote and Bustamite 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 Bustamite 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 Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

Epidote Vs Gedrite

Epidote Vs Goethite

Epidote Vs Hessonite

Epidote and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Epidote and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Epidote is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.