Large purple amethyst cake sparks wedding cake trend. Three different angles of Rachel Teufel's amethyst geode cake to show the depth of the design. Ali N Garrett Photography/Intricate Icings Cake ...

It took millions of years for agates and geodes to reach the earth’s surface — and it looks like this year they’re making up for lost time. The crystal-encrusted rocks are everywhere right now (and do ...