![]() ![]() Sapphire has a Mohs hardness of 9, while tanzanite has a hardness of about 6.5. ![]() For those reasons, tanzanite has become a lower-cost alternative to sapphire. It costs much less than sapphire, but is every bit as attractive - some people even prefer tanzanite over sapphire. In the United States, tanzanite is the second most popular blue faceted gem after sapphire. Tanzanite's wonderful blue color and Tiffany's promotion quickly made it an extremely popular gem. Tanzanite is a relatively new gem, first discovered in the 1960s, whereas most other popular gems have been known and used for hundreds, if not thousands, of years. Tiffany and Company selected the name to honor the country where it is produced. Tanzanite is a violetish blue gem that is only found in commercial amounts in the African nation of Tanzania. ![]()
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