Geology.com - Minerals Lots of articles, info, news, facts & pictures on mineral uses, properties & descriptions.
Video: Minerals Composition & what minerals are made of. Describes properties & tests that can be used to identify minerals; color, streak, hardness, cleavage, fracture, special properties.
Video: Mineral IdentificationDemonstrates tests to identify. Describes which tests are most reliable and least reliable.
Extra Information for those interested in learning more on their own! Guide to Rocks & Minerals of Illinoisby the Illinois State Geological Survey. Discusses Minerals and how to identify them, describes and shows pictures of individual minerals. Includes a Mineral Identification Flow Chart and a Mineral Identification Key towards the end of the booklet.