About: http://webisa.webdatacommons.org/411620969

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 very rare and I believe unique: it is is a form of crystalline granite except the feldspar and mica have been removed and replaced with tourmaline (I do not get it either!).
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.co.uk