
1) Ascension site 2) Biblical mount 3) Famous ridge near Jerusalem 4) Faux pearl 5) Hebrew mountain name 6) Hill near Jerusalem 7) Imitation pearl 8) Michigan college or its city 9) Mountain near Jerusalem 10) Ridge east of Jerusalem 11) Ridge near Jerusalem 12) Theatrical floodlight 
Found on 
https://www.crosswordclues.com/clue/olivet

artificial pearl
Found on 
http://phrontistery.info/o.html
  No exact match found.