Metalography or Metallography: How To spell?

The word Metalography is misspelled against Metallography, a noun meaning "A method of transferring impressions of the grain of wood to metallic surfaces by chemical action."

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

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