Lapili or Lapilli: How To spell?

The word Lapili is misspelled against Lapilli, a noun meaning "Volcanic ashes, consisting of small, angular, stony fragments or particles."

Lapilli has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings lapi & i which should not be misspelled with single 'L'
Wrong Spelling:  lapi-l-i 
Correct Spelling:  lapi-ll-i 
Find more wrongly spelled words of Lapilli to spell it well.