Fig. 1From: NaCl-related weathering of stone: the importance of kinetics and salt mixtures in environmental risk assessmentExample images of the droplet experiment a NaCl solution at 90% (start RH), b onset of crystallization (exaggerated to visualize the crystal—orange arrow) and c completed crystallization of NaCl at 70% (target RH). Imaged at a magnification of 160 with digital microscopy (HIROX) in a microclimate chamber (GenRH/Mcell)Back to article page