Mike Menzies has offered to send PDF copies of this article, subject to the same copyright restrictions and uses as described in my prior email:
Hage, R., & Menzies, M.A. (2018): The Little Gem Amethyst mine, Jefferson County, Montana. Rocks & Minerals, 93, 498-516.
The article describes an uncommon occurrence of amethyst in miarolitic cavities of a granitic pegmatite. His email address is: email@example.com
School of Geosciences, University of Oklahoma
100 East Boyd Street, Room 710 Sarkeys Energy Center
Norman, Oklahoma 73019
(405) 325 3253 (o), (405) 325 3140 (f)
Pegmatite Interest Group: www.minsocam.org/msa/Special/Pig/