Four Treasures Reference Database
Record No. 682
Gem Notes: Inclusions in sapphires from Yogo Gulch, Montana
Journal Article
Dunn, P.J. (1976) Gem Notes: Inclusions in sapphires from Yogo Gulch, Montana. Gems & Gemology, Vol. 15, No. 7, Fall, p. 200.
ISBN/ISSN: 0016626X | RWHL
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corundum, USA.12, Montana.12, inclusions.5, gems