Every advanced undergraduate in geology must learn how to use a microscope to study rocks and minerals. This well-written, lucid introduction to optical mineralogy combines in one volume both an easy-to-follow explanation of optical theory and a clear detailed description of rocks and minerals. In addition, the author provides an appendix on sample preparation and a useful set of identification tables. A well-written, comprehensive introduction to optical mineralogy.
This is a great resource for introductory optical mineralogy courses. The main gripe that I have with the 4th edition is the interference color chart - the colors don't look natural! The 3rd edition interference color chart looks way more realistic. The color chart made it hard to figure out the interference color orders, length fast/slow, etc. I'd recommend using this book with a different color chart. Otherwise this book does a great job.
This book is an excellent reference except that it lacks both index and glossary. Any book this dense in information really needs at least one of those, especially if it is going to be used as a text book.