About: http://webisa.webdatacommons.org/334110332

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Several pages are dedicated to a discussion of the different types of rocks, clays -largely used in that period for kitchenware- sands and limestones.
http://www.w3.org/ns/prov#wasQuotedFrom	scielo.org.ar