About Tanzanite

Tanzanite is a relative newcomer to the world of gems. It is named after the East African nation of Tanzania, the only place in the world where it has been found. A On its discovery in 1967, it was enthusiastically celebrated by the specialists as the ‘gemstone of the 20th century’. They held their breath in excitement as they caught sight of the first deep-blue crystals which had been found in the Merelani Hills near Arusha in the north of Tanzania. Millions of years ago, metamorphic schists, gneisses and quartzites formed impressive, flat-topped inselbergs on a vast plain in the shadow of Kilimanjaro. The precious crystals grew in deposits on the inside of these unusual elevations. For a long, long time they were hidden from the eye of Man, until one day some passing Masai shepherds noticed some sparkling crystals lying in the sun and took them along with them.. Generally Tanzanite is bluer in daylight and more violet in incandescent light. Its color ranges from soft pastel lilac through violet –blue. Tanzanite’s public recognition and popularity have grown steadily. Tanzanite typically shows strong pleochroism, which means it displays different colors from different directions. It usually looks violet blue from some directions, purplish from others. Tanzanite has been accepted as an alternate birthstone for the month of December.

Hardness is 6-7 on Mohs scale and Toughness fair to poor, due to cleavage and sensitivity to thermal shock. This can be created by simply taking the Tanzanite from the hot lights of the display case and placing it on the cool glass of the display case.

Tanzanite is only found in one location: Tanzania