This HTML5 document contains 4 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

PrefixNamespace IRI
isaphttp://webisa.webdatacommons.org/prov/
n4gypsum.
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:198730080
rdf:type
prov:Entity
prov:value
Gypsum is a mineral found in sedimentary rock formations in a crystalline form known as calcium sulfate dihydrate CaSO4???2H2O. One hundred pounds of gypsum rock contains approximately 21 pounds (or 10 quarts) of chemically combined water.
prov:wasQuotedFrom
n4:org
Subject Item
isap:446895378
prov:wasDerivedFrom
isa:198730080