Howardites contain dark, carbonaceous chondrite clasts making up a few percent of these meteoritic breccias. This work utilizes a micro-coring technique to extract 1-20 microgram-sized samples of these clasts from thin sections, and micro-INAA techniques to obtain trace element concentrations. The hope was that the trace element geochemical details would allow the carbonaceous chondrite types of the clasts to be readily determined.