Other
The image.com: Minerals
This is a very large list of minerals complete with image and physical descriptions, chemical descriptions, and classification.
Amethyst Galleries
Amethyst Galleries: Physical Characteristics of Minerals
The properties of minerals are defined in this resource, such as color, luster, cleavage, hardness, streak, and more. Included are pictures of minerals along with detailed descriptions. You can also search for minerals by name, class, or...
Curated OER
The image.com: Minerals
This is a very large list of minerals complete with image and physical descriptions, chemical descriptions, and classification.