About: http://webisa.webdatacommons.org/118583511

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	The rock is a very hard, gray, micaceous sandstone, and seems to be but little affected by long exposure, and hence affords a desirable material for culverts, bridge abutments, etc???.???
http://www.w3.org/ns/prov#wasQuotedFrom	quarriesandbeyond.org