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