Talk:Jades/@comment-35245249-20190321142253/@comment-27725096-20191018140739

the show is allowed to take liberties from real minerology as it pleases, beryls are not a gem class in the show as they're so well known as their own gems in the real world, jades are considered a wide class, while nephrites are a separate gem

the show bases it more on names, given lemon jade, so for example "oriental amethyst" (which is a type of sapphire in real life) would likely be an amethyst, not a sapphire, to avoid confusion