Amethyst crystal buffs to beacons

Amethyst crystals are looking pretty useless as of the 1.17 update only allowing you to craft spyglasses. I thought of a couple of uses for them such as amplifiers for beacons or upgrading the effect level on a beacon (of course there should be a certain limit of upgrades), it could also be used on other items like tools or armour for upgrading certain enchants. This would be a great addition since haste 2 and efficiency 4/5 can’t insta mine deep slate whereas the lowest haste level I could find combined with efficiency 4/5 was haste 7. I know it might sound a little overkill with the haste level going up to 7 but hear me out I think at least a little buff like amplifiers would make the game better. (Sorry for no paragraphs)