Feriferous or Ferriferous: How To spell?
The word Feriferous is misspelled against Ferriferous, an adjective meaning "Producing or yielding iron."
Ferriferous has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings fe & iferous which should not be misspelled with single 'R'
Wrong Spelling:  fe-r-iferous  Correct Spelling:  fe-rr-iferous 
Check more misspelled words of Ferriferous to spell it correct.