Volcano biome (please read)

The volcano would be an insanely rare overworld biome; one in ten of the new mountain biomes would generate as one.  It would be shaped like normal 1.17 mountains, except it would generate as a single mountain instead of a range, the mountain and everything below it would be made of deepslate, and there would be a crater instead of the mountain top filled with lava.  Diamonds would be extremely common under the volcano, like in real life.  All ice and packed ice in regular mountains would be replaced with blackstone, and all snow and powdered snow replaced with a new block: ash.  Ash would have gravity, but would dissolve if it touched water.  Ash could be made by burning a leaf block.  Also, trees and lava pools would generate around the mountain, the trees having basalt for logs and ash for leaves, so that the leaves would fall when they were touched.  The lava pools could generate magma blocks around them, and maybe even spawn magma cubes inside them sometimes.  All ores would be replaced with their deepslate versions.  One in five volcanoes would generate an obsidian lava temple inside their crater, making finding one almost impossible.  The temple would be filled with traps and almost impossible to mine through.  In the deepest room of the obsidian temple, the vault, there would be a good amount of ancient debris centered around a single netherite block, which is why this temple is so rare.  I would like it if mojang added at least one of these things.  oh i have no wor-