This dataset includes data of sampling, whole-rock geochemistry, X-ray diffraction, and leaching chemistry of tephra of 2021 Tajogaite eruption. Filename 0: Tajogaite-PSD-metadata.xml Short description of filename 0: Dataset metadata. Filename 1: Tajogaite-LD-DIA-informacion.pdf Short description of filename 1: General information of dataset. Filename 2: 1-Tajogaite-LD_PSD_data_triplicates.csv Short description of filename 2: LD results. Filename 3: 2-Tajogaite-LD_PSD_summaries.pdf Short description of filename 3: Summary of LD results per sample. Filename 4: 3-DIA_data_csv.zip Short description of filename 4: DIA results. Filename 5: 4-DIA_particle_images.zip Short description of filename 5: Images of particles obtained in the DIA analysis.