Mindat.org is described as one of the largest mineral database on the Internet with holdings that include over 11,000 minerals and information on over 100,000 mineral occurrences worldwide from over 23,000 sites. Visitors can search the archive using a mineral name or locality, and can browse common search topics or the newest entries. Once found, the pages contain a wealth of information about...

Created by petroleum geology consultant David Barthelmy, the Mineralogy Database Web site reportedly contains 4,281 individual minerals and descriptions. Visitors can browse the minerals by crystal system, by x-ray powder diffraction properties, by chemical composition, by the Dana system or the Strunz system, by physical and optical properties, alphabetically, and by mineral pictures. The large...

This website produced by the University of California -- Santa Barbara provides users with an abundance of information on the minerals in the internationally respected Bancroft Mineral Collection. For each specimen, students can find information divided into three parts. The main page supplies users with a summary of the chemical and physical properties and an image of an amazing array of...