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, …

What Are Rock-Forming Minerals? Scientists have identified over 4,000 different minerals. A small group of these minerals make up almost 90% of the rocks of Earth’s crust. These minerals are …

A small number of minerals and rocks will glow with spectacular colors under ultraviolet light. Learn how this happens.

Information on over 500 minerals, complete with detailed color photographs, crystallographic diagrams, physical and chemical properties, and much more. More information, table of contents.

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 …

A recent mining episode at Mount Mica began in 2003 when Coromoto Minerals decided to mine the entire pegmatite by following it underground to discover all of the pockets. Since then they …

Hunt For Gems - Keep What You Find! There are over 100 mines in the United States where anyone can visit, pay a small fee, look for gems and minerals, and keep what they find. For a …

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

This book provides an excellent introduction to fluorescent minerals and fluorescent mineral collecting. The best feature of this book is over 150 pages of photos that show mineral …