Store-wide markdowns20-50% off most items! FREE US Shipping over $100!
11" Copper Ore Slab from Lake Superior Copper District
Approx. Dimensions: 11x8.5x0.5 inches
Approx. Weight: 1125 grams
Locality: Upper Peninsula, Michigan
This large copper ore slab has a high gloss varnish on the front. It includes an acrylic slab stand.
Copper mining in Michigan's Upper Peninsula has a rich history dating back over a century. The Keweenaw Peninsula, particularly the Quincy, Calumet, and Copper Harbor regions, was once home to one of the most significant copper mining districts in the United States. Native Americans were the first to mine copper in the area, extracting it for tools and ceremonial objects. In the mid-19th century, the discovery of vast copper deposits spurred a mining boom, attracting settlers and leading to the establishment of towns like Calumet and Hancock. The copper deposits in Michigan are primarily in the form of native copper, occurring as veins within basaltic lava flows. Chemically, copper is a metal with the atomic number 29 and is known for its reddish-orange coloration. It is highly conductive, ductile, and malleable, making it valuable in electrical wiring, plumbing, and various industrial applications. Michigan's copper mines played a crucial role in supplying copper for the burgeoning industrialization of the United States and remain an important part of the state's history and economy.
Orders typically ship within 24-48 business hours. Shipping options and costs are calculated at checkout.
International shipments are subject to duties/taxes that vary by recipient country. You are responsible for any duties, fees, or taxes associated with your shipment. International shipments that are returned to us due to failure to pay duties, fees, or taxes will be assessed a 25% restocking fee.
Returns are accepted within 14 days of delivery according to the tracking information on the order. Items must be returned in new/unused/undamaged condition to receive a full refund. Items returned to us damaged or not in original condition will receive a partial refund. Refunds will be issued to the original payment method on the order.
If a return is made for reasons other than an error on our part, a 20% restocking fee will apply and will be deducted from any refund due.
We will not accept returns for any items outside of the 14 day return window.
Return shipping costs are the responsibility of the sender. We do not refund shipping costs. Please contact us if you need to return an item.
Updated 5/14/2026
