Title: Collector's Guide to the Tourmaline Group, Author: Robert J. Lauf
Title: Collector's Guide to the Three Phases of Titania: Rutile, Anatase, and Brookite, Author: Robert J. Lauf
Title: Collector's Guide to the Epidote Group, Author: Robert J. Lauf
Title: Collector's Guide to the Mica Group, Author: Robert J. Lauf
Title: Collector's Guide to Quartz and Other Silica Minerals, Author: Robert J. Lauf
Title: Collector's Guide to the Feldspar Group, Author: Robert J. Lauf
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Title: The Collector's Guide to Silicate Crystal Structures, Author: Robert J. Lauf
Title: Collector's Guide to the Vesuvianite Group, Author: Robert J. Lauf
Title: Collector's Guide to the Garnet Group, Author: Robert J. Lauf
Title: Collector's Guide to the Beryl Group, Author: Robert J. Lauf
Title: Collector's Guide to the Axinite Group, Author: Robert J. Lauf
Title: Collector's Guide to the Zeolite Group, Author: Robert J. Lauf
Title: Collector's Guide to the Pyroxene Group, Author: Robert J. Lauf
Title: Introduction to Radioactive Minerals, Author: Robert J. Lauf