Super Cobblestones

Adds five Super Cobblestone tiers crafted in 3×3 recipes: tier 1 from cobblestone or deepslate; tiers 2–5 from nine of the previous tier.
Adds five Super Pickaxe tiers, crafted with the custom super_pickaxe recipes: tier 1 combines Super Cobblestone 1 with any vanilla pickaxe (shapeless); tiers 2–5 place a vanilla pickaxe in the center of a crafting grid surrounded by eight matching-tier Super Cobblestones.
Crafted Super Pickaxes copy the durability of the vanilla pickaxe used and always show an enchanted glint. Tooltips list the level, mining size, and stored base pickaxe.
Mining sizes per level: 3×3×3, 6×6×6, 9×9×9, 15×15×15, and 25×25×25. Breaking a block with a Super Pickaxe schedules layer-by-layer excavation extending forward from the hit block in your facing direction and upward from your Y-level. Only one durability point is consumed per use regardless of how many blocks are cleared.
Extra blocks respect tool suitability and skip unbreakable blocks; drops and XP use the stored base pickaxe data. The layered scheduler breaks one slice per tick to reduce lag and ignores unloaded chunks or out-of-bounds positions.