Here are some words for your next trivia night.
OTOLITH. Give up? It's an ear bone of a fish made of calcium carbonate and protein that helps fish maintain their balance. As the fish grows, its otoliths form sequential rings like a tree trunk, corresponding to different times in the fish's life. The chemical makeup of each ring tells us where the fish had been living durng that time period.
PHONOLITE. A type of lava that rings when struck with a hammer.
Sometimes I read the strangest articles.