Karst mountains

After the caves and cliffs update, I have felt that something is missing, the karst mountains. The karst mountains are a mountainous biome with jungle trees and a new tree native to the region and is also emdangered, the Yingkesong, the biome is based off of the eroded (karst) mountains of south China. The mountains are made of granite, stone, and quarts. this biome is the only way to get quarts in the Overworld, emeralds also spawn too. Grass is very green Rain is common Mountains are 100-250 blocks tall Jungle temple as can spawn