Deepslate Redstone Ore is a deepslate variant of redstone ore found in deepslate and tuff layers. It must be mined with an iron pickaxe or higher to drop redstone dust. Without Silk Touch, it drops 4–5 redstone dust, with Fortune increasing the yield (up to 8 with Fortune III).
When interacted with or stepped on, Deepslate Redstone Ore temporarily emits light and red particles. However, it does not generate redstone power on its own. When smelted, it produces redstone dust. Placing it under a note block creates a 'bass drum' sound.