Photos and information about 80 common rock-forming, ore and gemstone minerals from around the world.

There are approximately 4000 different minerals, and each of those minerals has a unique set of physical properties. These include: color, streak, hardness, luster, diaphaneity, specific gravity, …

Fluorescent Minerals Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.

The best way to learn about minerals is to study with a collection of small specimens that you can handle, examine, and observe their properties. Inexpensive mineral collections are available in …

Home » Metals » REE - Rare Earth Elements REE - Rare Earth Elements and their Uses The demand for rare earth elements has grown rapidly, but their occurrence in minable deposits is …

In 1812, Friedrich Mohs developed a set of 10 standard minerals that could be used to assign a relative hardness to minerals and other materials. Today, over 200 years later, his hardness …

Most of Earth’s crust is comprised of a small number of minerals. These minerals are known as the common rock-forming minerals.

Minerals - Descriptions, photos, articles, properties and uses for common minerals.

The best way to learn about minerals is to study with a collection of small specimens that you can handle, examine, and observe their properties. Inexpensive mineral collections are available in …

The best way to learn about minerals is to study with a collection of small specimens that you can handle, examine, and observe their properties. Inexpensive mineral collections are available in …