Manna Gems DnD Campaign Table quick reference

Gem Type	School of Magick	Elemental Type
Ruby	Evocation	Fire
Sapphire	Enchantment	Water
Topaz	Transumation	Earth
Opal	Divination	Air
Diamond	Abjuration	Spirit
Onyx	Illusion	Shadow
Amethyst	Necromancy	Entropy
Emerald	Conjuration	Nature