What's the use of mc amethyst?

My world mc amethyst block is used to synthesize telescopes.

Mc amethyst is a kind of square formed in the inner layer of amethyst cave. Unlike amethyst parent rocks, amethyst blocks can be obtained by excavation. By looking for the underground amethyst cave, amethyst grows on the cave wall. Synthesis formula The amethyst block synthesizes four amethyst fragments.

My world mc amethyst collection method:

Amethyst fragments are minerals that fall from amethyst clusters. You can get 4 pieces of amethyst by digging amethyst clusters with a pickaxe (and you don't need accurate collection spells). What is the probability of dropping eight pickaxes with the curse of fate I 1? 3. The probability of 8 12 falling in the second fortune is 25% respectively, and the probability of 8 12 and 16 falling in the third fortune is 20% respectively. Only two amethysts can be obtained by destroying amethyst clusters by other methods.

Amethyst in my world is not a simple "mine" that can be directly mined, it has its own growth stage. Amethyst mine will only be born in the extremely rare "Amethyst Cave" under my world, which is the only way to obtain crystals in the future.