A mineral is a naturally occurring inorganic solid substance with a specific chemical composition and a crystalline structure. This definition implies that minerals are:
Minerals occur in a wide range of geological settings, including: introduction to mineralogy nesse pdf
Mineralogy requires memorization. Having a PDF on your phone allows you to quiz yourself on silicate structures while waiting for the bus. A mineral is a naturally occurring inorganic solid
Introduction to Mineralogy: Nesse, William D.: 9780195106916 William D.: 9780195106916