Care to know how crystals are studied? This #TeachingTuesday, our CERN–Solvay camp students take you along for a day in the Crystal Lab at CERN. The Crystal Lab is where the crystals used in the CMS Experiment at CERN electromagnetic calorimeter were first investigated and characterised. Today, the laboratory studies the properties of numerous materials and crystals to be used in future particle detectors both in high-energy #physics and in medical imaging. During the camp, the students were abl