Heulstone or Hailstone: How To spell?

The word Heulstone is misspelled against Hailstone, a noun meaning "A single particle of ice falling from a cloud; a frozen raindrop; a pellet of hail."

Word contains consecutive vowels 'AI' in between alphabets h & lstone is misspelled as 'EU'
Wrong Spelling: h-eu-lstone
Correct Spelling: h-ai-lstone
Check more misspelled words of Hailstone to spell it correct.