Gemological Information for Benitoite

Color: Blue or Violet Blue, Rarely Colorless or Pink
Crystal Structure Hexagonal
Refractive Index: 1.757 - 1.804
Durability: Fair
Hardness: 6 to 6.5
Similar Stones: Azurite, Sapphire, Synthetic Sapphire
Treatments: None Known at this Time
Country of Origin: U.S.

Benitoite Care

Ultrasonic Cleaning: Risky
Steam Cleaning: Never
Warm Soapy Water: Safe
Chemical Attack: Attacked by Hydrofluoric Acid and Slowly Slowly Affected by Hydrochloric Acid
Light Sensitivity: Stable
Heat Sensitivity: No Rapid Temperature Changes

Online G&G Articles on Benitoite

Online Texts on Benitoite