Gneussoid or Gneissoid: How To spell?

The word Gneussoid is misspelled against Gneissoid, an adjective meaning "Resembling gneiss; having some of the characteristics of gneiss; -- applied to rocks of an intermediate character between granite and gneiss, or mica slate and gneiss."

Word contains consecutive vowels 'EI' in between alphabets gn & ssoid is misspelled as 'EU'
Wrong Spelling:  gn-eu-ssoid 
Correct Spelling:  gn-ei-ssoid 
Check more misspelled words of Gneissoid to spell it correct.