This glossy ceramic mug celebrates the rugged, mineral-rich shores of Upper Peninsula of Michigan on Lake Superior with illustrations of pure native copper dentrite crystal specimens which wrap around the mug, inviting quiet curiosity during morning coffee or an evening tea. The artwork—crisp, colorful, and finely detailed—brings a minute collection of geological wonder to your countertop. Durable white ceramic and a comfortable C-handle make it a practical daily companion for collectors, field sketchers, and anyone who loves shoreline wanderings. Dishwasher- and microwave-safe, it keeps the illustrations bright and the routine simple, so the focus stays on the story each stone carries. OPTION - If you wish to personalize your mug, we can put it in place of one of the identifier spots. NO ADDED CHARGE Product features - Microwave and Dishwasher-safe - Vibrant, high-resolution color printing that preserves detailed illustrations - Glossy white ceramic body with comfortable C-handle - Available in 11 oz; lead- and BPA-free - Clean in dishwasher or wash by hand with warm water and dish soap