A Beautiful Hobby: Selecting, Salvaging, and Caring for Welo Ethiopian Opal

by Robert L. Nolan

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... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0692234977
• ISBN13: 9780692234976
• Release Date: July 2014
• Publisher: Robert L. Nolan
• Length: 160 Pages
• Weight: 1.10 lbs.
• Dimensions: 11.0" x 0.4" x 8.5"