A team of Tanzanian miners has discovered the largest tanzanite stones ever seen in the country's history.
원문출처 : https://www.cnn.com/2020/06/30/africa/tanzanite-largest-gems-scli-intl/index.html
원문출처 : https://www.cnn.com/2020/06/30/africa/tanzanite-largest-gems-scli-intl/index.html