Tesselation or Tessellation: How To spell?

The word Tesselation is misspelled against Tessellation, a noun meaning "The act of tessellating; also, the mosaic work so formed."

Tessellation has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings tesse & ation which should not be misspelled with single 'L'
Wrong Spelling:  tesse-l-ation 
Correct Spelling:  tesse-ll-ation 
Find more incorrect spellings of Tessellation to spell right way.