And you think the diamond in your engagement ring tells a story! Look deep into my often spiraled form and I’ll tell you who traveled where, who ate what, and who killed whom back as far as the Cambrian period. My name is taken from the Greek words for “dung” and “stone.” Although your five-year-old would possibly just call me dinosaur poo. I’m not precious, but I am valuable to historians, and a niche favorite of jewelry designers on Etsy and of collectors at Tucson.

Who am I?

Guess this gem for a chance to win a “Jewelry Geek” T-shirt. Be sure to include your full name and the name and address of your store. The contest winner will be selected from among correct answers to this question.

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