Tanzanite is beautiful violet-blue stone and is found only in Tanzania where it was discovered in 1967. It is one of the birth stones for the month of December.
Tanzanite has a hardness of 6.5 to 7.0 on the Mohs’ scale; therefore, it is more susceptible to wear and tear than a diamond or sapphire. You should take care to protect it from scratches, sharp blows and extreme temperatures. Ultrasonic cleaning of tanzanite is not recommended.
The best way to clean Tanzanite is to use Connoisseurs Delicate Jewellery Cleaner. First, put the stopper in the sink. Immerse the jewellery in the jar of cleaner for a few minutes. Use the strainer to remove the jewellery and brush it gently. Use the specialized brush to get between prongs and under the setting to remove any build-up that prevents the stone from looking its best. Then rinse the jewellery under warm water and dry with a lint free cloth.