Glavconite or Glauconite: How To spell?

The word Glavconite is misspelled against Glauconite, a noun meaning "The green mineral characteristic of the greensand of the chalk and other formations. It is a hydrous silicate of iron and potash. See Greensand."

Word contains consecutive vowels 'AU' in between alphabets gl & conite is misspelled as 'AV'
Wrong Spelling:  gl-av-conite 
Correct Spelling:  gl-au-conite 
Find more incorrect spellings of Glauconite to spell right way.

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