A cross-section of purple agate reveals concentric bands of deep violet, lavender, and cream, layered with delicate striations and natural mineral deposits that create an almost geological map. Golden deposits accent the upper edge while the composition centers on the stone's dramatic curved patterns, captured with the precision of nature photography that celebrates the raw geometry hidden within the earth. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.