Crystal Hollows

The Crystal Hollows is a location that is focused on Mining. The primary focuses of the Crystal Hollows are mining Gemstones and collecting Gemstone Crystals to complete the Crystal Nucleus.

Tasks

When the player first enters  Crystal Hollows, they will be greeted with the following message:

NEW AREA DISCOVERED!

 Crystal Hollows

■ Mine to your heart's content!

■ Mine new ores and fight new enemies!

■ Discover Crystals to earn rewards and forge Perfect Gems!

Overview

The Crystal Hollows consists of a large series of tunnels made of Hard Stone, with veins of Gemstones and randomly-generated structures scattered throughout the caves. The tunnels themselves remain the same across lobbies, but the locations of structures will always be different across different servers. At the center of the Crystal Hollows houses the  Crystal Nucleus, where Gemstone Crystals can be placed.

Talking to Gwendolyn allows you to purchase a pass to the Crystal Hollows for 6h for 10,000 Coins: you gain permanent, unrestricted access to the Crystal Hollows after helping Dulin.

Mining

While inside the Crystal Hollows, broken ores and blocks are not replaced with bedrock. Instead, they will physically be broken be replaced with air, similar to vanilla Minecraft. Blocks can be broken everywhere except the  Crystal Nucleus and in specific structures: Torches, Ladders, Hard Stone, and Cobblestone can also be placed.

Stone is replaced by Hard Stone inside the Crystal Hollows, which has a higher Breaking Power and a unique Collection. Gemstones, Mithril, and most Ores can spawn inside the Crystal Hollows. Ores that require a Furnace to be smelted into an ingot, such as Iron Ore and Gold Ore, do not require Smelting Touch or a Furnace to be converted to an ingot.

Yields from most vanilla ores are increased within the Crystal Hollows.

Ore Yields
Icon	Ore	Base Yield
	Coal Ore	4 Coal
	Lapis Lazuli Ore	9 Lapis Lazuli
	Redstone Ore	22 Redstone Dust
	Emerald Ore	4 Emerald
	Diamond Ore	4 Diamond

Locations

There are 5 main locations in the Crystal Hollows, being the  Jungle,  Mithril Deposits,  Precursor Remnants,  Goblin Holdout, and  Magma Fields. These correspond to their respective Gemstone, that being Amethyst, Jade, Sapphire, Amber, and Topaz. Ruby can also be found in the Crystal Hollows and can be found everywhere. Additionally, 3  Fairy Grottos spawn in random locations throughout the Crystal Hollows: Jasper can be mined there.

Each primary location has a sub-location, where its respective Gemstone Crystal can be obtained.

The  Jungle contains the  Jungle Temple, where a Jungle Key must be given to access a series of parkour with the Amethyst Crystal at the end;
The  Mithril Deposits contains the  Mines of Divan, where a Metal Detector must be used to find and return Scavenged Items, with the Jade Crystal being rewarded at the end;
The  Precursor Remnants contains the  Lost Precursor City, where all 6 Automaton Parts or a Precursor Apparatus must be given to access the Sapphire Crystal;
The  Goblin Holdout contains the  Goblin Queen's Den, where any variant of Goblin Egg must be given to King Yolkar the Amber Crystal without being caught;
The  Magma Fields contains  Khazad-dûm, where Bal must be defeated to claim the Topaz Crystal.

Gemstone Crystals can be placed in the  Crystal Nucleus to or used to forge Perfect Gemstones. You can see the status of Gemstone Crystals in the tablist: a Crystal can either be Not Found, Not Placed, or Placed. A Gemstone Crystal must be found but Not Placed to be used in the Forge to forge an its respective Perfect Gemstone.

Treasure and Loot Chests

Upon mining blocks, there is a small chance to spawn a treasure chest, containing various rewards. These chests can spawn anywhere except near the bedrock wall. The player must aim at the critical particles on the face of the chests 5 times in a row in order to open a chest. These treasure chests spawned from mining will only last for around 1 minute before disappearing.

As a tip for those struggling with treasure chest lockpicking, you need to aim one or two block pixels above where the particles are spawning in order to hit the targets. If you have game sounds enabled you will hear a small ping to indicate you have hit the target and can move on to the next one.

Loot chests on the other hand can spawn in set locations within structures; these chests can be opened directly with a small time delay and contain about twice the gemstones and powder of what a treasure chest gives on average.

The loot within such a certain structure chest is always the same for all players who open it within that Crystal Hollows instance. However, the amount of Gemstone Powder within each slot of the chest varies between players.^[1] Chests from mining do not share this property.

Treasure and Loot chests will only contain the loot found within the area. For example, Magma Fields chests might contain Yoggie, Topaz or Ruby.

Treasure and Loot chests have a 5% chance to be a rare loot chest, which can contain better drops. If the chest is not a rare loot chest, it will contain common loot.

The Crystal Serendipity attribute grants, at max level, a +10% chance to double rewards from a Treasure Chest. When this activates, the following message displays:

SERENDIPTOUS! Your Crystal Serendipity attribute doubled your

rewards!

The possible loot is listed below, as well as the chance of the item being rolled as a drop from chests. 3-6 drops are rolled per chest; Bigger Box grants +50% chance to find an additional item in chest, which can be increased to 65% with Echo of Boxes and Echo of Echoes attributes.

Possible Loot

Structures

Each part of the Crystal Hollows has its own main special location, excluding Magma Fields, which will almost always generate in every lobby:

The Jungle Temple generated in the Jungle
The Mines of Divan generated in the Mithril Deposits
The Goblin Queen's Den generated in the Goblin Holdout
The Lost Precursor City generated in the Precursor Remnants
3 Fairy Grottos generated anywhere within the Crystal Hollows

Each of these structures house their respective Crystal. A special task must be completed to obtain the Crystal.

Khazad-dûm is the one location that can spawn in any part of the Crystal Hollows, making it harder to find.

There are also smaller structures which generate in random locations. Examples include:

A structure which resembles the Deep Caverns, including the lift and the layered structure of the original Deep Caverns island
A dragon skull from the Spider's Den
A replica of the Dark Auction
A miniature version of The Forge including a working forge NPC
A copy of the pre-Hub overhaul Tavern

A full list of Structures can be found at Crystal Hollows/Special Locations.

Certain structures contain loot chests. Loot chests always generate in the same positions within the structures, similar to Dungeon Secrets. Loot Chests also generate the same items for every player, meaning if a player finds a chest with good loot such as a lot of Gemstone Powder or a Blue Goblin Egg, they can send the coordinates to chat to lead others to the chest.

NPCs

There are 19 NPCs found in the  Crystal Hollows:

NPC	Minimap	Location	Description	Shop?
Chunk		 Precursor Remnants 797.5, 128.5, 708.5	Sells Superboom TNT for 2,500 Coins.	✔
Ede	 Crystal Hollows Moves Around		Tells the player a story, and then turns into a bear at the end.	✕
Emissary Sisko		 Crystal Nucleus 495.5, 106, 556.5	Allows the player to access their Commissions.	✕
Forger	 Mithril Deposits Moves Around		Spawns in a specific structure, allowing the player to access  The Forge.	✕
Gemma		 Crystal Nucleus 475.5, 106, 513.5	Sells perks and upgrades in exchange for Diamond Essence as part of the Diamond Essence Shop.	✔
Geonathan Greatforge		 Crystal Nucleus 530.5, 106, 556.5	Allows the player to upgrade their Drills.	✕
Golden Dragon	 Dragon's Lair Moves Around		Sells the Golden Dragon Pet.	✔
Kalhuiki Door Guardian	 Jungle Temple Moves Around		Allows the player to access the  Jungle Temple parkour by presenting a Jungle Key, so they can obtain the Amethyst Crystal.	✕
Keeper of Diamond	 Mines of Divan Moves Around		Accepts the Scavenged Diamond Axe from the player so they can obtain the Jade Crystal.	✕
Keeper of Emerald	 Mines of Divan Moves Around		Accepts the Scavenged Emerald Hammer from the player so they can obtain the Jade Crystal.	✕
Keeper of Gold	 Mines of Divan Moves Around		Accepts the Scavenged Golden Hammer from the player so they can obtain the Jade Crystal.	✕
Keeper of Lapis	 Mines of Divan Moves Around		Accepts the Scavenged Lapis Sword from the player so they can obtain the Jade Crystal.	✕
Keith	 Crystal Hollows Moves Around		Tells the player a story, and then turns into a bear at the end.	✕
King Yolkar	 Goblin Holdout Moves Around		Applies the King's Scent effect to the player in exchange for 1 Goblin Egg, so they can obtain the Amber Crystal.	✕
Odawa	 Jungle Moves Around		Sells various items in exchange for Sludge Juice, including Jungle Keys.	✔
Pete	 Crystal Hollows Moves Around		Tells the player a story, and then turns into a bear at the end.	✕
Professor Robot	 Lost Precursor City Moves Around		Allows the player to access the Sapphire Crystal after giving them robot parts.	✕
Sludge (NPC)	 Jungle Moves Around		Rewards the player with a Treasure Chest after freeing them.	✕
Xalx	 Goblin Holdout Moves Around		Gives the player Mysterious Meat.	✕

Trivia

The Crystal Hollows are internally referred to as the Greater Mines in the SkyBlock API.
The Crystal Hollows are the only place Dirt, Andesite, Diorite, and Granite (and other blocks) can be mined, however, only Dirt drops itself and all others drop Hard Stone instead.
Ores within a few blocks of the Bedrock border may not get auto-smelted without Smelting Touch.
Attempting to get into the Crystal Hollows using an Ender Pearl will result in the player being teleported out with the following message, even if they do have a valid Crystal Hollows Pass:
You have been teleported out of the Crystal Hollows because you did not have a valid pass!
You can stay in Crystal Hollows for at least 21 in-game days. The lobby will close and become inaccessible on the 19th day. However, if there are four or more people in the lobby, you can stay up to 35 in-game days at most (depending on luck).
A player cannot claim rewards from the same loot chest on multiple profiles.
If 2 loot chests are spawned next to each other it will create a double chest. However, it will still act as 2 separate chests.

History

Alpha Hypixel Network
Jun 30, 2021	AHN 0.12 Round 1	Added Crystal Hollows.
Unknown Date		Changed size of the Crystal Hollows from 1024 x 256 x 1024 to 621 x 157 x 621.
Unknown Date		Fixed all Polished Diorite blocks within the Crystal Hollows counting as Titanium and regenerating.
Aug 20, 2024		Increased entry requirement from Heart of the Mountain Tier III -> IV.
Aug 20, 2024		Removed ᠅ Mithril Powder from Crystal Hollows treasure and loot chests.
SkyBlock Prototype
Jul 14, 2021	0.12	Added Crystal Hollows.
Jul 20, 2021		Updated Hollows map to improve navigation slightly.
		Removed Ruby Skull Matching Puzzle room.
		Fixed not being able to fish up certain Crystal Hollows sea creatures.
Jul 22, 2021		Updated Jungle Temple to make the parkour easier.
Jul 27, 2021		Added a 5 minute spawn protection area around entrances.
		2 Fairy Grottos will spawn per lobby rather than 1.
		Improved warping to and from the Crystal Hollows.
		Improved pass checks.
		Reduced Powder amounts from loot chests.
		Fixed loot chest spawning in some rooms.
		Updated some rooms with context clues and spacing.
Aug 24, 2021		Added background soundtrack.
Unknown Date		Extended the duration of the Crystal Hollows pass to 5 hours.
Nov 8, 2021		Newer Crystal Hollows servers will now be prioritised when entering the Crystal Hollows.
		The Crystal Hollows now remains open for 5 hours, or 15 in-game days (from 2 hours, or 6 in-game days).
		3 Fairy Grottos now spawn per lobby rather than 2.
		When the player enters the Crystal Hollows via a warp (not the Minecart track) it will now put them at a random entrance.
Apr 9, 2022		Disabled Loot Chests.
Apr 13, 2022		Re-enabled Loot Chests.
Apr 13, 2022		Loot Chests now immediately give the loot after opening rather than opening a Chest GUI.
Feb 14, 2023	0.18	Extended the duration of the Crystal Hollows pass to 6 hours.
Jun 26, 2023		Added a cooldown to some warning messages in Crystal Hollows.
Jun 26, 2023		Fixed always respawning at the same entrance in Crystal Hollows when dying.
Sep 17, 2024	0.20.6	Increased entry requirement from Heart of the Mountain Tier III -> IV.
Sep 17, 2024	0.20.6	Removed ᠅ Mithril Powder from Crystal Hollows treasure and loot chests.