Amethyst Crystals Have weird block breaking Textures

When I break an amethyst Crystal, the usual block-breaking texture looks a little odd. When you break an amethyst crystal, the block breaking texture is the scale of a usual block (Grass, dirt) and is supposed to be scaled onto the crystal properly. Please look at the video to properly understand what I'm talking about. (video may be low quality because of the need to compress it)