Idocrase is mineral species known as Vesuvianite and has several varieties. Sometimes erroneously referred to as "California Jade."

• Californite - Mottled or Veined Green to Yellowish Brown
• Xanthite - Transparent Yellow to Yellowish Brown
• Cyprine - Greenish Blue to Light Blue

Gemological Properties

Gemological Information for Idocrase
Color	Yellow Green, Bluish Green, Gray, White & Brown
Crystal Structure	Tetragonal
Refractive Index	1.713 - 1.718
Durability	Fair to Good
Hardness	6.5
Similar Stones	Jadeite, Nephrite, Hydrogrossular, Spinel, Epidote, Kyanite, Zoisite
Treatments	None Known at this Time
Country of Origin	U.S., Canada , Russia, Italy, Norway and the Alps
Idocrase Care
Ultrasonic Cleaning	Risky
Steam Cleaning	Not Safe
Warm Soapy Water	Safe
Chemical Attack	Attacked by Hydrofluoric Acid
Light Sensitivity	Stable
Heat Sensitivity	Fuses with Heat