An Introduction to the Methods of Optical Crystallography, by F. Donald Bloss, was first published in 1961. That edition still stands as a classic in the field. It is technically sound and the explanations are, for the most part, clear and understandable even to a typical sophomore-level geology major. The 1961 edition was reprinted, but not revised, in 1967, and for many years it remained a widely used textbook for undergraduate courses in optical mineralogy. If the number of adoptions and the overall popularity of this book declined over the following years, it was the result of several factors:...

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