Examples for
A mineral is a naturally occurring chemical compound or element, usually crystalline in nature, that is not a byproduct of life. The study of minerals is called mineralogy. Explore thousands of minerals, which all vary in color, shape and other properties, using Wolfram|Alpha.
Query for minerals by name or compare them.
Study the regular arrangements of the atoms in mineral crystals.
Investigate properties of minerals, which include hardness, density and transparency, among many others.
Query for famous gems by name or type.