This specimen features a HUGE, 7 x 4 x 3 cm copper crystal, pointed at one end (see top-left photo) and dramatically more robust at the top, nicely perched on a small amount of lightweight matrix. It can be displayed horizontally or vertically to equal effect. It is an AMAZING, 3-dimensional specimen in person, with huge visual appeal, historic import, and aesthetic quality even by modern standards. Copper crystals of this size, and in this quality, are uncommonly preserved and available today. Copper Harbor is an old mining district that ended up not being as productive as mines further south, and was abandoned after mining for only a few years. This would date to the late 1800s or early 1900s.