This is an early Thunder Bay amethyst form the late 1800s, with a Foote label still glued to the bottom 100-plus years later! While broken off matrix, this crystal is complete all around and pristine save a few tiny dings...remarkable for the age of it. This early material has obviously a much deeper and more interesting color than most of what is found there today, and impressed me with its intense color (more obvious, perhaps, in person).