Province of British Columbia
B.c. Ministry of Energy and Mines: Common Rock Forming Minerals
There are six common minerals most often found in rocks. They are quartz, feldspar, olivine, mica, pyroxene, and amphibole. This website provides photos and information on each, and discusses their importance when identifying rocks.
Other
Scienceviews.com: Minerals and Their Uses
Every segment of society uses minerals and mineral resources everyday. The roads we ride or drive on and the buildings we live learn and work in all contain minerals. Below is a selected list of commonly used metallic and nonmetallic...
University of Arizona
University of Arizona: Az Master Gardener Manual: Properties of Soil
Site provides a brief description of soil texture as well as discusses the relative size of soil particles.