In mining, environmental and geologic research, exploration investigations are frequently accompanied by large scale drilling and blasting to extract large samples of material. This material then needs to be transported to laboratory facilities in order to investigate the chemical composition. The entire process is expensive and time consuming, and involves a significant amount of environmental damage. Exploration activities are extremely time and resource consuming, resulting often in contamination, negative impact on landscape and ecosystem, as well as friction with the local population. To minimize exploration impact and maximize efficiency and flexibility, we are developing a miniaturized probe that uses X-Ray Fluorescence to determine with outstanding accuracy the ground’s composition along small, low-impact boreholes. The probe does not require radioactive sources, directly collecting precise and real-time information about the composition along the borehole.