Chiseled Polished Blackstone — Minecraft block

Overview

In Minecraft 1.21.4, Chiseled Polished Blackstone is a Nether block. Chiseled Polished Blackstone has a crafting recipe, so it is renewable as long as you can source its ingredients. At a hardness of 1.5 it takes a moment to break but never slows a build down.

It needs at least a wooden pickaxe to drop anything; a weaker tool destroys it for nothing. Mining it returns the block itself, so it is safe to relocate. A full stack holds 64.

It is crafted from Polished Blackstone Slab. The stonecutter is the cheaper route: one Blackstone gives one of these. No recipe takes it as an ingredient.

About the blackstone set

How long it takes to break

Chiseled Polished Blackstone sits at hardness 1.5: 7.5 seconds per block with your fists, 0.25 with the correct netherite tool.

You are looking at 0.4 seconds on iron and 0.3 on diamond — the diamond step is where the time actually falls.

It will break below wooden, and you will get nothing for it. That combination of time spent and drop lost is the classic mining mistake.

The Efficiency formula is level² + 1 added to tool speed — at V that is about 2.5 times the unenchanted rate.

* breaks the block but yields no drop
Tool	No enchantment	Efficiency III	Efficiency V
Hand *	7.5 s	7.5 s	7.5 s
Wooden	1.2 s	0.2 s	0.1 s
Stone	0.6 s	0.2 s	0.1 s
Iron	0.4 s	0.15 s	0.1 s
Diamond	0.3 s	0.15 s	0.1 s
Netherite	0.25 s	0.15 s	0.1 s
Golden	0.2 s	0.15 s	0.1 s

Properties

With 6 blast resistance Chiseled Polished Blackstone usually goes down to a nearby explosion. It is fully opaque and produces no light. One inventory slot holds 64, the normal full stack. A pickaxe is the fastest choice here. A tool of the wrong class is no better than your fist — the speed bonus is tied to the block's own tool tag.

Transparent: No
Required tool: Wooden Pickaxe