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Yogo: The Great American Sapphire
Yogo The Great American Sapphire
Author: Stephen M. Voynick
To the surprise of many, the United States has emerged as a commercial source of what some gem experts consider the world's finest sapphire. Equally surprising is that the entire production of the gem comes from a little-known Montana mine named Yogo, which 60 years earlier had produced $25 million in fine-cut sapphires for the British. Yogo ...  more »
ISBN-13: 9780878422173
ISBN-10: 087842217X
Publication Date: 10/1/1987
Pages: 219
Edition: Revised
Rating:
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Publisher: Mountain Press Publishing Company
Book Type: Paperback
Members Wishing: 0
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