The obsession begins when you're a little kid strolling along the beach. Suddenly you stop dead in your tracks. Peeking out of the sand is a stunning shell, former home to a slimy mollusk, now a piece of calcified art, unique as a fingerprint, tinted in a rainbow of pastel colors, swirled with a strange landscape of ridges and crevices. You grab it for a closer look, then realize you can't... More >>>