Vasco

Best answer as chosen by Asker / Ratings
Ok, to start, yes you mispelled, it's called Orichalcum+. It's the most rare item in the entire game and there are only seven of them. So they are really difficult to obtain. You can't obtain them faster or sooner because they appear all over the game, but I will help you. This is a list of the places where you can get them:
-Space Paranoids - Central Computer Mesa (chest)
-Twilight Town - Sunset Terrace (as Sora) (chest)
-The World That Never Was - The Brink of Despair (chest)
-100 Acre Wood - Finish Starry Hill
-Atlantica - Finish "A New Day is Dawning"
-Olympus Coliseum - Beat Goddess of Fate Cup
-Any Moogle Shop - Get at least one of EVERY other material

Hope I helped