About: http://webisa.webdatacommons.org/396195827

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	If we examine a natural stone such as the agate, we can see that its crystal is a structure of small boxlike cells which are said to contain one or more atoms that are stacked in a crystal system with an axis and rotational symmetry.
http://www.w3.org/ns/prov#wasQuotedFrom	topix.com