Moutain Ruins

I have this Idea for a 1.18 structure called the "moutain ruin" They can be found on the top of moutain biomes and are made of stone bricks, mossy stone bricks, cracked stone bricks, and slabs and stairs aswell as a new block called "stone debris" if coming in contact with water it becomes sand and If you stand on it for long enough (a view seconds) it breaks and if you have a silk touch shovel or diomand or netherite shovel you can break it and the block drops a new item called stone shards that you can use to craft stone shards blocks and stone tools Also the structure is normally all the way or mostly covered in snow, ice, and powdered ice