Conservation image Lime Mortars and Plasters (1998–2009)
A project of the Getty Conservation Institute
 

The evolution of prisms into platelets as putty ages: a) fresh lime putty; b) putty aged two months, with corrosion on the prism side [arrow] as platelets begin to form; c) putty aged six months; d) putty aged two years. Photo: Carlos Navarro-Rodriguez.