Noegen or Neogen: How To spell?

The word Noegen is misspelled against Neogen, a noun meaning "An alloy resembling silver, and consisting chiefly of copper, zinc, and nickel, with small proportions of tin, aluminium, and bismuth."

Word contains consecutive vowels 'EO' in between alphabets n & gen is misspelled as 'OE'
Wrong Spelling:  n-oe-gen 
Correct Spelling:  n-eo-gen 
Find more incorrect spellings of Neogen to spell right way.