Desert Hawk Books |
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560
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Since publication of Volume II in 1976, the tempo for the search for gemstones in North America has greatly increased with demand and advanced technology. In this definitive and final volume, Sinkankas shares his continuing research, and updates the development of the older, well- establish gem deposits. New discoveries and key persons in mining are introduced along with a wealth of historical and technical detail. There's exciting new information about: Montana sapphires; red beryl from Utah; pink and green tourmaline from California and Maine; strongly-banded agates from the Midwest; pearls; insect-bearing amber; new diamond finds, and the prospect of commercial production of diamonds in North America--and much more! Enhanced by maps of localities; book and periodical references; full-color photos by world-class gem photographers, Erica and Harold Van Pelt, this authoritative treatment of North American gemstone exploration is a necessary reference tool for anyone involved in the fascinating world of gems. "Renowned minerology and gemology expert Sinkankas incorporates deposits discovered in the last two decades with the historical and technical data of volumes 1 and 2, published in 1959 and 1975. Keeping pace with the increased tempo of gemstone exploration, he provides new information on topics such as deposit localities, the nature, extent and productivity of those deposits, and the sizes and quantities of the gemstones produced. Gems are organized alphabetically, and occurrences are arranged by geographical and political order, followed by book and periodical reference lists. Contains maps of localities and 16 color photos." - Book News. "Since
its publication almost four decades ago, this work by renowned gem
and mineral expert John Sinkankas has been a standard reference
on the subject of the gem materials found throughout North America.
The present volume, the third in the series, follows previous volumes
published in 1959 and 1976. It presents the latest and most comprehensive
information on North America's gemstones, based on Sinkankas' extensive
correspondence with gem and mineral dealers, individuals actively
engaged in mining operations, and his knowledge of the gemological
literature. "Sinkankas, an internationally recognized authority of gemology and mineral collecting, provides this comprehensive update and continuation to his widely read Gemstones of North America (v.1, 1959; v.2, 1976). It supplements the first two but incorporates enough of the basic information to be used by itself. New data is given on many of the earlier described minerals and localities, with especially interesting material included in relation to newly developed sites for diamond, amber, beryl, sapphire, and jade. For each of more than 500 minerals and mineral families, there is an explanation of the gem characteristics and detailed descriptions of the source localities in states and provinces of the US, Canada, and Mexico plus localities in the Caribbean and Central America. The well-written text is supported by some excellent color photographs of gemstone locations and working sites. References to informa- tion in geological publications, mineralogical journals, and popular gemology magazines are given for each of the minerals and locations. Recommended for libraries maintaining collections on gemstones and minerals. General readers; undergraduates." - Choice "Thousands
of owners of Volumes I and II of John Sinkankas' Gem- stones of
North America have waited eagerly for this book which reveals new
materials, new locations, and updates previously reported data.
No other set of books has helped the amateur and professionals in
our field as much in understanding the immense wealth of gem materials
in North America. John Sinkankas' name is synonymous with the world of gemology and mineralogy. He has written more than 100 articles and fifteen books on the subject and is also renown as an artist, lapidary, gem-cutter, and bibliophile. Along with his wife Marjorie, he operated Peri Lithon Books, which features antiquarian books about the earth sciences, from their home in San Diego, California. |
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