New aspects and perspectives on tsavorite deposits

Feneyrol, J., Giuliani, G., Ohnenstetter, D., Fallick, A. E., Martelat, J. E., Monie, P., ... & Rakotondrazafy, A. F. M. (2013). New aspects and perspectives on tsavorite deposits. Ore Geology Reviews, 53, 1-25. Link to Article

Characteristics of Gem-Quality By-Product Synthetic Zincite

Zhang, J., Gao, Y., & Shi, G. (2017). Characteristics of Gem-Quality By-Product Synthetic Zincite. Gems & Gemology, 53(1).  Link to Article

An Inside Look at the 2017 Tucson Shows

Pay, D., Lucas, A., Hsu, T., Welch, E. & Salvato, A. (2017). An Inside Look at the 2017 Tucson Shows. Gems & Gemology, 53(1).  Link to Article

Sapphire, a not so simple gemstone

Sutherland, F. L. (2017). Sapphire, a not so simple gemstone. American Mineralogist, 102(7), 1373-1374. Link to Article

Large gem diamonds from metallic liquid in Earth’s deep mantle

Smith, E. M., Shirey, S. B., Nestola, F., Bullock, E. S., Wang, J., Richardson, S. H., & Wang, W. (2016). Large gem diamonds from metallic liquid in Earth’s deep mantle. Science, 354(6318), 1403-1405. Link to Article

Characterization of a Synthetic Nano-Polycrystalline Diamond Gemstone.

Skalwold, E. A., Renfro, N., Shigley, J. E., & Breeding, C. M. (2012). Characterization of a Synthetic Nano-Polycrystalline Diamond Gemstone. Gems & Gemology, 48(3). Link to Article

Synthetic Emeralds Grown by Richard Nacken in The Mid-1920s: Properties, Growth Technique, and Historical Account

Schmetzer, K., Gilg, H. A., & Vaupel, E. (2016). SSynthetic Emeralds Grown by Richard Nacken in The Mid-1920s: Properties, Growth Technique, and Historical Account. Gems & Gemology, 52(4). 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

Inclusions in Natural, Synthetic, and Treated Emerald

Renfro, N. D., Koivula, J. I., Muyal, J., McClure, S. F., Schumacher, K., & Shigley, J. E. (2016). Inclusions in Natural, Synthetic, and Treated Emerald. Link to Article

Photoatlas of Gemstone Spectra for Gemmology Students

Mitchell, C. (2015). Photoatlas of Gemstone Spectra for Gemmology Students. The Journal of Gemmology, 34(6), 552.

Photoluminescence Mapping of Optical Defects in HPHT Synthetic Diamond

Loudin, L. C. (2017). Photoluminescence Mapping of Optical Defects in HPHT Synthetic Diamond. Gems & Gemology, 53(2). Link to Article

Amber: The organic gemstone

Lambert, Joseph B., & Poinar, George O. Jr. (2002). Amber: The organic gemstone. Accounts of Chemical Research, 35(8), 628. Link to Article

Cuprian Liddicoatite Tourmaline

Katsurada, Y., & Sun, Z. (2017). Cuprian Liddicoatite Tourmaline. GEMS & GEMOLOGY, 53(1), 34-41. Link to Article

Carbonado Diamond: A Review of Properties and Origin

Haggerty, S. E. (2017). Carbonado Diamond: A Review of Properties and Origin. Gems & Gemology, 53(2). Link to Article

Geology of Gem Deposits

Groat LA (ed) (2007) Geology of Gem Deposits. Mineralogical Association of Canada Short Course 37, 276 pp. Link to Article

Emerald deposits and occurrences

Groat, L. A., Giuliani, G., Marshall, D. D., & Turner, D. (2008). Emerald deposits and occurrences: A review. Ore Geology Reviews, 34(1), 87-112. Link to Article

"Gem formation, production, and exploration: Why gem deposits are rare and what is being done to find them."

Groat, Lee A., and Brendan M. Laurs. "Gem formation, production, and exploration: Why gem deposits are rare and what is being done to find them." Elements 5.3 (2009): 153-158. Link to Article

Optimizing Face-Up Appearance in Colored Gemstone Faceting

Gilbertson, A. (2013). Optimizing Face-Up Appearance in Colored Gemstone Faceting. Gems & Gemology, 49(2), 64-81. Link to Article

Characterization of Mg and Fe Contents in Nephrite Using Raman Spectroscopy

Feng, X., Zhang, Y., Lu, T., & Zhang, H. (2017). Characterization of Mg and Fe Contents in Nephrite Using Raman Spectroscopy. Gems & Gemology, 53(2).Link to Article

The Role of Silicon in the Color of Gem Corundum

Emmett, J. L., Stone-Sundberg, J., Guan, Y., & Sun, Z. (2017). The Role of Silicon in the Color of Gem Corundum. Gems & Gemology, 53(1). Link to Article