Board Thread:Off-topic/@comment-26062541-20170113025355/@comment-26618197-20170113030849

From what I read diamonds are so brittle because of how hard they are although I can't quite explain the specifics all that well so here is a place that can explain it. You also have to take into account that hardness only refers to scratching and not blunt force but that does leave confusion on why Peridot's Gem wasn't at least cracked in Kindergarten Kid unless her visor protects it