Dataset for "Origin of the black pumice from the Fukutoku-Oka-no-Ba 2021 eruption: constraints on nanoscale crystallization conditions"

This dataset accompanies the manuscript “Origin of the black pumice from the Fukutoku-Oka-no-Ba 2021 eruption: constraints on nanoscale crystallization conditions” by Ukita et al. The dataset contains the underlying data and images used to characterize nanoscale crystallization in natural pumice samples and experimental run products from the 2021 Fukutoku-Oka-no-Ba eruption. The files are organized into two main directories: 1_data/ Major elemental compositions of the starting-material groundmass grass, used for Table 1 Calculation sheets for areal crystal number density, used for Section 3.3.5 and Table 3 Raw Raman spectroscopy data, used for Figure S3 Calculation sheets for determining the amount of brucite added to the jacketed silica glass tube experiments, used for Table S1 2_images/ Representative BSE images of each experimental product Images used for crystal number density calculationsThis folder includes both the original BSE images and the corresponding manually counted images.