Go deep inside an underground cave, where you'll experience true silence among some of the most dramatic mineral formations in the world. (cancun-bestdiscounts.com)
Unfortunately, I didn't able to capture good photos of the amazing mineral formations inside the cave. (johnapgnt.com)
«Answering these questions may eventually allow us to understand the biological mineral formation and apply its principles to design green, sustainable routes for the production of advanced materials.» (pnnl.gov)