Twinning in Minerals

The 20 specimens in this exhibit are displayed, not only for their beauty, but to illustrate various laws of twinning in minerals. This complex concept is explained using visual examples of minerals and drawings for each law that is defined in the text. Test your knowledge and see if you can tell by which law the minerals are twinned!

Click on photos for larger view in a new window. Photos: Debra L. Wilson