Limestone - unprocessed (limestone quarry operation)

The activity generating the emissions is limestone quarry operation. The reference product is limestone, unprocessed. The product "limestone, unprocessed" represents a naturally occurring mineral that consists principally of calcium carbonate (CaCO3). It is found in many forms and is classified in terms of its origin, chemical composition, structure, and geological formation. This product is modelled as 97% calcite (CaCO3), 2% silica (SiO2) and 1% magnesite (MgCO3). Limestone is generally used for construction, cement, quicklime, agriculture, metal refining and flue gas desulphurisation. In construction, limestone is the most widely used crushed rock, although it is generally sold in form of sand and gravel. 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/20588/documentation.