Our newest microscope is an FEI Quanta 3D FEG SEM funded primarily with an NSF MRI Equipment grant. This dual-beam field-emission scanning electron microscope is equipped with both ion beam for ablating sample areas and electron beam for imaging the revealed surfaces. It is equipped with a Gatan Alto 2500 cryo stage, Gatan tensile stage, and an Oxford PentaFET-x3 EDS system. The SEM can be used in high vacuum, low vacuum, and environmental (ESEM) modes.