Epidote and Anhydrite Physical Properties

Epidote

Anhydrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.502.90-2.98

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

{001} perfect and {100} imperfect

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

6-73.5

2 10

1.8 Chemical Composition

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

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Epidote and Anhydrite Chemical Formula

While comparing Epidote and Anhydrite 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 Anhydrite 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 Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Brown Gemstones

Epidote Vs Fluorapatite

Epidote Vs Fluor buergerite

Epidote Vs Fluorite

Epidote and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Epidote and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Epidote is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.