Honey is considered raw if it has not been heated beyond the temperatures that you would find inside a hive on a summer day.  It is slightly heated to allow it to flow for extracting and bottling purposes but it is never heated above 35-37c.  Raw honey has also never been filtered, only put through a screen to clean it.  That means that you can expect it not to be as clear as honey that has all of the pollen filtered out.