Gemological Information 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 |
| Family: | |
| 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 |