Sutherland, F. L. (2017). Sapphire, a not so simple gemstone. American Mineralogist, 102(7), 1373-1374. Link to Article
Inclusions in Natural, Synthetic, and Treated Sapphire
Renfro, N. D., Koivula, J. I., Muyal, J., McClure, S. F., Schumacher, K., & Shigley, J. E. (2017). Inclusions in Natural, Synthetic, and Treated Sapphire. Link to Article
Big Sky Country Sapphire
Hsu, T., Lucas, A., Kane, R. E., McClure, S. & Renfro, N. (2017) Big Sky Country Sapphire: Visiting Montana’s Alluvial Deposits. Gems & Gemology, 53(2). Link to Article
Sapphires from northern Ethiopia
Vertriest, W., Weeramonkhonlert, V., Raynaud, V., & Bruce-Lockhart, S. (2017). Sapphires from northern Ethiopia. Link to Article