This gemstone, discovered in 1967, is mined in only one place in the world: Merelani.
Which of the following countries does NOT mine opal:
The Aztecs instituted a tax payable only in this gemstone:
Yes, these are my final answers!
© 2020 American Gem Trade Association
Colored gemstone information and jewelry fashion
from the non-profit American Gem Trade Association
Site Design by Citrine Media