Dental delight! Tooth of sea urchin shows formation of biominerals
Monday, December 21, 2009 - 15:35
in Paleontology & Archaeology
(PhysOrg.com) -- Some of the most common minerals in biology, including those in bones and shells, have a mysterious structure: Their crystals are positioned in the same orientation, making them behave as one giant crystal, even though they do not look like a faceted crystal.