This mod changes beacons to give amethyst a unique, useful purpose. If you're looking for something to use your chest full of amethyst blocks on, look no further.
Amethyst Beacons: Amethyst blocks are the only block that works as a beacon base, and amethyst items are required to activate beacons. The beacon GUI gets a visual update to make this more obvious.
Craftable Nether Stars: Don't want to fight all the Withers required for a full set of beacon effects? If you have one nether star, you can craft more with wither skeleton skulls and a diamond block. You still need the skulls, but you can pay some diamonds to avoid the extra time and risk that comes with actually spawning and slaying the Wither.
Expanded Range: Beacon ranges are expanded to 35/50/65/80 blocks to make them just a bit more attractive, especially for larger builds. You can change the beacon's base range and the additional range per level in a config file.