Curated OER
Soaring Eagle Joins the Supra Life Family Colloidal Minerals
This site provides lots of information on iron such as a description, its importance, deficiency symptoms, diet recommendations, food sources, and toxicity.
Curated OER
Crystallography and Minerals Arranged by Crystal Form
From the Trinity Mineral Company web site. Crystal systems and crystal classes are explained. A table lists the seven crystal systems and the various classes within each system. Colored diagrams depict the geometric structure of each...
Curated OER
The image.com: Minerals
This is a very large list of minerals complete with image and physical descriptions, chemical descriptions, and classification.