Rocks, Games 

Cinnabar is an instructive game the entire family can play and enjoy. Great numbers of this game have also been used in classrooms across the United States. The cards were compiled by Vinson Brown, author of Rocks and Minerals of California and other books dealing with rocks and minerals.

Cinnabar's 56 color cards, arranged in groups by their major elements, are a fun method to learn not only how to recognize rocks and minerals but to place them in chemical families.

There are directions for several different games of varying levels of difficultly to enable all members of a family, or different grade levels of students, to learn as they play.