Conservation image Salt Research (2003–2008)
A project of the Getty Conservation Institute
 

A series of electron micrographs illustrating—at progressively higher magnification—the presence of small salt crystals adjacent to fracture surfaces in limestone. The salt crystals' shape and location provide evidence of how damage takes place. The smallest features visible in these images are less than 1/10,000 of a millimeter in size. Photos: Eric Doehne.