Chrysoprase, a light green variety of quartz, used as a gem. Its color is due to the presence of a small quantity of nickel oxide. Chrysoprase is translucent and fades when exposed to heat or light. The color may be restored when the stone is placed in a damp atmosphere. Chrysoprase is found in Europe, the United States, and Australia.
Identifying the biggest archaeological find in history is sort of like naming the best movie ever made. One person's blockbuster could be another person's bust. So which find swept the other contenders into the dust?
Emperor Qin ordered 7,000 generals, cavalrymen and archers to protect his mausoleum. What's so odd about that? Well, they were made of terracotta.