Copper Ore Bookends 2496
These Copper Ore Bookends have basalt (lava rock) and quartz with the copper. This set is approx. 8 1/2"W x 7 1/2"H x 2 1/4"D and weighs 14.9 pounds.
The bookends are cut to show the best pattern, color and veining of each copper ore specimen. The bookends are polished and coated to prevent tarnish and cork added to the bases.
Michigan Native Copper
Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1982. Over 7 million tons of refined copper were recovered from Michigan's copper mines. In the early 1900's, it led the world in copper production and "Lake Copper" was the purity standard to which other refined copper was compared.
Long before the mining operations of the past century began in the Keweenaw, pre-historic peoples mined copper from the mineral rich veins.