Michigan Native Copper - from Michigan's Keweenaw Peninsula. Long before the mining operations of the past 150 years, indigenous people mined the copper from the Keweenaw mineral veins - the worlds purest deposits of copper ever found. "Lake Copper" became the standard that other, refined copper was compared to.
You get a selection of random pieces of copper - really random, in random shapes. You get about 60 grams or a little more. The photos are representative of 60 grams. The number of pieces and sizes will vary - from 20 to 40 mm. Some will be thin and you can punch a hole though with a metal punch,some will be thicker and more dimensional. Some have holes. Some do not. Some have some verdigris - some do not.
Approx. 60 grams.