Gibsite or Gibbsite: How To spell?
The word Gibsite is misspelled against Gibbsite, a noun meaning "A hydrate of alumina."
Gibbsite has double "bb" is mispronounced as "b"Remember double 'BB' in between the strings Gi & site which should not be misspelled with single 'B'
Wrong Spelling:  Gi-b-site  Correct Spelling:  Gi-bb-site 
Find more wrongly spelled words of Gibbsite to spell it well.