Metadata, the particle size of pure basalt samples obtained from the buried mesh bags in mesocosms, determined with a laser diffraction particle size analyzer associated with measurements in Niron et al. 

Exploring the Synergy of Enhanced Weathering and Bacillus subtilis: A Promising Strategy for Sustainable Agriculture. 

The first sheet is for treated samples and the second sheet is for unweathered basalt
Id_sample: the sample definition consisting of Unweathered_basalt, Basalt (from Bt treatment), Basalt_bacillus (from Bt_Bac) treatment and quality control with information regarding the replication
Date: the date of the measurement (day/month/year)

SSA_(m2/g): specific surface area
St_dev: Standard deviation for the standard (alpha-Alumina 102) measurements

d(0.1), d(0.2), d(0.5), d(0.8), d(0.9), and D(4,3): the mesh size which 10%, 20%, 50%, 80%, and 90% of particles will pass through, and the average mesh size, respectively

Result Below 2.000 microns to 2000 microns: the percentage of the sample that passes through the mesh with a sequential filtration from low to high mesh pore size