Jun
22
strontium; glacier erratic
August 16 1908, Ohio
A trellised entrance to a crystal cave. This and the view below reference two of my new projects: a mine with crystals and striated landscape cross-section, and also an endless mass of entrance structures.
Circa 1907, Massachusetts
A boom from the granite quarry is in the background, left of the steel-banded glacier erratic. Several types of gems and minerals are found in this quarry.
