About: http://webisa.webdatacommons.org/433673710

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	Preferred abrasives are siliceous materials, such as silica, and will normally have a mean particle size up to about 10 microns and a very high surface area e.g. in the range of 150-750 square meters/gram.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com