Gemological Properties

Gemological Information for Epidote
Color Dark Brown, Light to Dark Green, Yellow & Black
Crystal Structure Monoclinic
Refractive Index 1.729 - 1.768
Durability Fair to Poor
Hardness 6 to 7
Similar Stones Idocrase, Kyanite, Zoisite
Treatments None Known at this Time
Country of Origin U.S., Austria, Italy, France, Finland, Czech Republic, Finland, Myanmar, Kenya, Mexico, Brazil
Epidote Care
Ultrasonic Cleaning Risky
Steam Cleaning Never
Warm Soapy Water Safe
Chemical Attack Decomposed by Hydrofluoric Acid and Slowly Decomposed by Hot Hydrochloric Acid
Light Sensitivity Stable
Heat Sensitivity Fuses with Heat