A great way to develop curiosity and intellect is providing books to help deepen understanding about a topic like these rocks ...

A little knowledge of rocks and minerals will help you identify everything from jewelry to fossils. While reading this article may not turn you into a geologist, it should give you the basic ...

The third rock was categorized as Epidote, an uncommon mineral that isn't incredibly valuable, as it can fetch around $60 per piece. But its rarity marks it as a precious gemstone.

Books Received Published: 08 December 1904 Mineral Tables—for the Identification of Minerals by their Physical Properties Nature 71, 123 (1904) Cite this article ...

Books Received Published: 07 June 1930 Applied Inorganic Analysis: with Special Reference to the Analysis of Metals, Minerals, and Rocks Nature 125, 852 (1930) Cite this article ...