Step-by-step Questions and Answers with detailed color photographs for easy identification.
The Firefly Guide to Minerals, Rocks and Gems is designed for easy and reliable identification of minerals, gems and rocks. The identification process begins w... read more
Under the right conditions, over millions of years, geological activity can form extremely striking and amazing minerals. Once they have formed, these rare giants can be destroyed by the very forces that created them. Few survive, and eve... read more
How will your life change when the supply of tantalum dries up? You may have never heard of this unusual metal, but without it smartphones would be instantly less omniscient, video game systems would falter, and laptops fai... read more