11 types of gemstones formed approximately 20 to 55 miles below the surface in a fun online archaeology learning game.
"Dig for Gemstones Game" is a free online knowledge level game, to excavate 11 types of precious gemstones. A small point and click game for desktop computers, laptops and tablets, which may be played in the web browser. The Archaeology Knowledge Board include pictures of 11 types of gemstones, to play with.
This fun education class may answer some of the following questions: