Metalograph or Metallograph: How To spell?

The word Metalograph is misspelled against Metallograph, a noun meaning "A print made by metallography."

Metallograph has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings meta & ograph which should not be misspelled with single 'L'
Wrong Spelling:  meta-l-ograph 
Correct Spelling:  meta-ll-ograph 
Find more incorrect spellings of Metallograph to spell right way.