About: http://webisa.webdatacommons.org/320787031

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	crystals, especially near the walls, have cleavage planes normal to the contacts.
http://www.w3.org/ns/prov#wasQuotedFrom	ncdcr.gov