First, shields can now be enchanted with Thorns. The thorns effect works only when the shield is in blocking mode.
Second, makes thorns chestplate(and shield) exclusive, because the chestplate has the most durability and needs some exclusive enchants anyways
Have you have had just like a entire wall of chests dedicated solely to cobblestone/deepslate? Well, my suggesting adds COMPRESSED cobblestone/deepslate, which, in addition to having a unique dark gray color, takes up 9 times less chest space and can be further compressed to dense cobblestone/deepslate. You can obviously uncraft them. Finally, compressing again(assuming Minecraft stone is largely feldspars), gets you the new garnet item, a deep green rock with it's own brick set and decor. Garnets do not have a "Garnet block" and i cannot see garnet armor or tools in the future. Garnets cannot be turned back into dense cobblestone/deepslate.
If garnets, helidors, and topazes are all worth the same, why do we only ever see garnets used in the books? Same applies with how we only see rubies even though smokestones and zircons are worth the same. On that note, why are there even multiple sphere types with the same denomination? what's the point of having amethyst if sapphire is worth the same?