Beryloid or Berylloid: How To spell?
The word Beryloid is misspelled against Berylloid, a noun meaning "A solid consisting of a double twelve-sided pyramid; -- so called because the planes of this form occur on crystals of beryl."
Berylloid has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings bery & oid which should not be misspelled with single 'L'
Wrong Spelling:  bery-l-oid  Correct Spelling:  bery-ll-oid 
Find more incorrect spellings of Berylloid to spell right way.