About: http://webisa.webdatacommons.org/395567268

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	These silicates do not exist as pure salts, but rather as more or less altered mixtures of salts along with kaolin, calcium carbonate, magnesium carbonate, feldspar, silica, or other minerals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es