Purple Tourmaline from Zambia
- September 1, 2020
- Brendan M. Laurs; Alexander U. Falster; William B. "Skip" Simmons
- The Journal of Gemmology
The Dunton Gem Quarry
- October 1, 2019
- Karen Webber; William B. "Skip" Simmons; Alexander U. Falster
- Rubellite
Evidence for internal fractionation from Li isotopes in tourmaline and mica in the Berry-Havey rare-element pegmatite (Maine, USA)
- September 1, 2019
- Encarnacion Roda-Robles; Alfonso Pesquera; William B Simmons; Pedro P. Gil-Crespo; Alexander U. Falster
- The Canadian Mineralogist
Rubellite Chemistry
- January 1, 2019
- Alexander U. Falster
- Rubellite
Tourmaline (dravite) from the Simanjiro District, Tanzania
- June 1, 2017
- Cara Williams; John Bear Williams; Brendan M. Laurs; Alexander U. Falster; William B. "Skip" Simmons
- The Journal of Gemmology
Interaction of basaltic lava with gem tourmaline miarolitic cavities in the Havey pegmatite, Poland, Maine
- January 1, 2017
- Alexander U. Falster