Infrared microscopy, also referred to as FTIR microscopy, is ideal for identification of trace evidence in forensics and characterizing small particles in wide varieties of other fields. Combining the accurate material and chemical identification of FTIR spectroscopy with the ability to focus directly on micro-sized particles, makes this an indispensable technique. Use of this technique for comparative identification of paint and fibers has been well documented. In addition to these conventional uses, FTIR microscopy allows separation of materials of interest spatially as well as spectroscopically. By visualizing small differences in shape, color and or texture under the microscope, different materials of interest can be measured separately, even if they exist in a bulk mixture. Spatially separating and measuring mixtures of powdered materials is especially useful in the areas of both drug enforcement and explosive analysis.