About: http://webisa.webdatacommons.org/422486712

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	A dense sulfate mineral that can occur in a variety of rocks, including limestone and sandstone, and is commonly used to add weight to drilling mud.
http://www.w3.org/ns/prov#wasQuotedFrom	mineralco.net