About: http://webisa.webdatacommons.org/254728504

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	Marbles scratch easily, and they can be marked by acids, including lemons, vinegar, and tomatoes.
http://www.w3.org/ns/prov#wasQuotedFrom	diamondcertified.org