A transparent variety of zoisite, used as a gem. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tanzanite" in a sentence
"We are number one in tanzanite and we also have minerals that can be developed on a commercial scale such as ruby, garnet, sapphire, copper, cobalt, tin, and so on."
"The super expensive silver-leathered footwear are decorated with 185 carats of tanzanite which is a rare gemstone found only in Africa …"
"Royalties on rough diamonds and gemstones such as tanzanite, on the other hand, should increase from 5 per cent to 7 per cent while, at the same time, royalties for cut and polished stones should rise from zero to 3 per cent."