The Life Cycle of a Mineral Deposit—A Teacher’s Guide for Hands-On Mineral Education Activities

A Cover displaying a thin slice of an igneous rock viewed under a polarizing microscope. The colors and textures can be used to identify minerals and the rock type. This rock is from South Africa and contains economically important deposits of Plati num Group Elements (PGE). Similar rock types are used as decorative facing for buildings and also for countertops.