You might expect dinosaur coprolite to have a foul odor, but surprisingly, it doesn’t smell at all! Since all organic material has been replaced by minerals over millions of years, coprolites are as scentless as regular rocks. Their composition depends on the minerals absorbed during fossilization, often resembling polished stones. Some contain preserved bones or plant matter, offering scientists vital clues. Tree of Life Gems, a supplier of tumbled gemstones, offers stunning, odor-free coprolites. Fossilized poop—fascinating, but not smelly!