Rock

The entries on this annotated, structured list of rocks all are items and blocks in Minecraft that:

1. Are similar to real-world rocks;
2. Share a name with real-world rocks;
3. Are fictitious but fulfill a similar role to rocks.

A few fictitious blocks are included in this list; namely, blackstone, deepslate, End stone, glowstone, netherrack, and redstone. Their actual nature is up to the player's imagination.

These make up the majority of the ground where they're found.

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  Basalt – columnar basalt found making up the basalt delta biomes of the Nether
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  Bedrock – the unbreakable layer of rock that limits mining below the deepslate layer; also sandwiches the Nether; unobtainable in Survival
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  Deepslate – the dark gray rock that makes up the deepest mineable layer of the Overworld below Y=0; useful for crafting
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  End Stone – a hard, pale yellow material that makes up all the islands of the End
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  Netherrack – a soft, red material that makes up most of the Nether
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  Sandstone – a light-colored rock found below almost any sand deposit
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  Stone – the gray rock that makes up the bulk of the Overworld above Y=0
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  Terracotta – a stone found in colorful, exposed layers in the mesa; craftable by smelting clay in a furnace

These generate as part of world decorators. Decorators are a kind of terrain feature. Ores and other ore blobs are decorators.

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  Basalt – columnar basalt found in the basalt pillars, basalt columns, and deltas of the Nether
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  Bedrock – forms End gateways and the exit portal of the End
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  Blackstone – black rock that can be found in deltas of the Nether
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  Cobblestone – forms the walls of monster rooms
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  Mossy Cobblestone – forms forest rocks of old growth taigas and generates as part of monster room floors
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  Cinnabar - found in sulfur caves
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  Dripstone – found in dripstone clusters; useful for generating water or lava
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  End stone – forms small islands in the End
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  Glowstone – exclusively found in glowstone blobs in the Nether
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  Granite – makes up the body of copper ore veins
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  Obsidian – a hard rock that makes up the obsidian pillars and obsidian platform of the End
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  Sandstone – forms desert wells
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  Smooth Basalt – encases amethyst geodes, where it's associated with calcite and amethyst
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  Sulfur - found in sulfur caves
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  Tuff – makes up the body of iron ore veins

Blobs

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  Andesite – a light-colored rock found in solitary underground blobs
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  Blackstone – a material only found in large blobs in the Nether's basalt deltas; useful for crafting
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  Deepslate – a dark gray rock sometimes found in blobs close to the deepslate layer
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  Diorite – a light-colored rock, similar in color to andesite but coarser-looking; found in solitary underground blobs
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  Granite – a pinkish rock found in solitary underground blobs
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  Tuff – a brownish rock commonly found in solitary underground blobs within the deepslate layer
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  Calcite - a white rock that decorates mountains in blobs, as well as part of amethyst geodes

Ores and Minerals

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  Block of Amethyst – a source of amethyst, a material that has some niche interactions in crafting recipes
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  Coal Ore – a source of coal, a rock used for torches and furnace fuel; found in greatest abundance near the surface
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  Copper Ore – a source of copper, used to make lightning rods and spyglasses; sometimes found in enormous ore veins
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  Diamond Ore – a rare ore found deep underground; a source of diamonds to make durable weapons, tools, and armor
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  Emerald Ore – the rarest of all ores, yielding emeralds used for currency when trading with villagers and wandering traders; only found in mountains
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  Gold Ore – a source of gold, used to craft tools, weapons, armor, golden carrots, and golden apples; also valuable to piglins
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  Iron Ore – a much-desired source of iron, which has many uses; sometimes found in enormous ore veins
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  Lapis Lazuli Ore – the lapis lazuli from this ore is a rich blue rock useful in enchanting and as a dye; found close to and within the deepslate layer
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  Redstone Ore – a source of redstone dust, a material that can carry signals and activate moving parts; found in the deepest depths of the underground
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  Nether Quartz Ore – a source of quartz, a material that is mostly used in decoration, but has some niche interactions in other crafting recipes

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Coal and 👁 Image
Lapis Lazuli are also rocks in their own right.

These rocks can be found in structures and features

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  Basalt – columnar basalt found in the bastion remnants of the Nether; It also generates around amethyst geodes in its 👁 Image
  smooth form
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  Blackstone – black rock that can be found in bastion remnants in the Nether
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  Cobblestone – generates in a variety of structures, including villages and jungle temples
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  Netherrack – generates in ruined portals and bastion remnants
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  Obsidian – a hard rock that can be found in ruined portals
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  Sandstone – generates in desert pyramids and in desert villages
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  Calcite - a white rock found around amethyst geodes

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  Cobblestone – a block of cobbles that drops from mining stone; found naturally where flowing water meets flowing lava; widely used in crafting
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  Flint – a rock that drops from gravel; useful in crafting arrows and starting fires
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  Obsidian – a hard black blast-proof rock found where lava is flash-cooled by water; useful for crafting enchanting tables, ender chests and beacons, traveling to the Nether, and summoning dragons

• Mineral
• Sediment