Hardness: 6-7 Mohs
Enhancement Code: Heating
A: Medium light bluish purple, little or no colour zoning; eye clean; good brilliance; good cut; good polish
A: Medium bluish purple, little or no colour zoning; eye clean; good brilliance; good cut; good polish
Care: Tanzanite is not for everyday wear and one should take care when wearing it. Avoid exposure to heat and sudden changes in temperature. Avoid contact with chemicals. To clean, gently scrub with a soft toothbrush and a solution of mild dish soap and warm water.
Major Sources: Tanzania
Tanzanite’s rarity and exotic origin have added to its fascination. This modern gemstone was unknown until 1967, when Masai herdsmen in eastern Africa noticed blue crystals sparkling in the sun. Tanzanite’s dramatic discovery, coupled with its scintillating beauty, caused a worldwide sensation.
To date, the world’s only source for the gem remains the hills of northern Tanzania, near Mount Kilimanjaro.