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A Beautiful Hobby
Robert Nolan
其他書名
Selecting, Salvaging, and Caring for Welo Ethiopian Opal
出版Robert L. Nolan, 2014-06-26
主題Self-Help / General
ISBN06922349779780692234976
URLhttp://books.google.com.hk/books?id=6YPdoAEACAAJ&hl=&source=gbs_api
註釋In this book I describe the problems I've encountered working with Welo Ethiopian Opal and provide solutions to those problems that work for me. I also present a method of removing gem quality opal from matrix and waste opal that's cheap, quick, pretty easy, and allows you the means to gather the maximum amount of precious opal from each piece of rough. Finally, I provide simple methods for protecting and caring for the opal while it's being worked and after it's become the beautiful gemstone you've always hoped to own.