Excellent, precise and inspiring piece of science!- By: , 24 Sep 1999 It's an excellent book of Mineralogy, & extremelly Complete, J. D. Dana is a piece of work.A very useful tool for anyone learning about minerals- By: , 18 Sep 1998 I have used this book for my mineralogy classin college. I keep it as a reference. i believe my understanding of the physical properties of mineral could not have happened from lectures alone. It was this book which helped me & everyonein mineralogy classes throughout the U.S. There are easy to use tables & facts on almost every mineral you could come acrossin the field. I hope this book lasts with me the rest of my life.