Board Thread:General Discussion/@comment-26011249-20150427140155/@comment-26812261-20150429045132

As close as Ruby and Sapphire are, they have noticeably different personalities. Amethyst and Pearl are vastly different as well. I don't think it's a coincidence that both Garnet and Opal are taciturn and stoic. Perhaps opposing personalities simply cancel each-other out in a fusion, whereas in cases like Sugilite, the more hot-headed, confrontational aspects of Amethyst's and Ruby's personalities overpower Sapphire, whereas with Alexandrite you've got an unstable clump of lumbering nonsense because there are too many personalities trying to build consensus at once.