Gypsum - mineral (gypsum quarry operation)

The activity generating the emissions is gypsum quarry operation. The reference product is gypsum, mineral. The product "gypsum, mineral" represents the natural mineral CaSO4 * 2 H2O, milled. It is mined together with anhydrite rock in open pit mining. The output of the mine is crushed and sorted. The intermediate products are composed of about 65% natural gypsum (CaSO4 * 2 H2O), 34% natural anhydrite rock (CaSO4) and 1% soil and gravel that are deposited back in the mine. The material is gained by blasting and digging. Gypsum is used by the cement industry; as a filler in the paper industry, and as raw material for (burned) anhydrite and stucco. The reference product amount is 1. The cut-off classification is allocatable product. The activity type is ordinary ordinary transforming activity. Please refer to the ecoinvent documentation here for full details: https://ecoquery.ecoinvent.org/3.11/cutoff/dataset/20738/documentation.