Sludge Mining (Gem Mixture) – 8.2M Coins/Hour

How to do it

1. Get into the Crystal Hollows: you need Heart of the Mountain level 3 or 4, and a Crystal Hollows Pass.
2. Type /warp crystals to get close.
3. Walk to the Jungle area inside the Crystal Hollows and buy a Jungle Pickaxe from Odawa (200 Sludge Juice, one time only).
4. Mine Hard Stone blocks with your Jungle Pickaxe to collect Sludge Juice. This step is exactly the same as Sludge Mining, so it counts for both.
5. When you have a lot of Sludge Juice, type /warp forge to go to the Forge in the Dwarven Mines.
6. Craft Gemstone Mixture: 320 Sludge Juice + 4 Fine Jade + 4 Fine Amber + 4 Fine Amethyst + 4 Fine Sapphire Gemstones. It takes 4 hours to finish.
7. A Forge only has a few slots, so you can only finish about 1 Gemstone Mixture every 4 hours in total - it's normal to also sell your extra Sludge Juice directly instead of waiting for a free slot.
8. Sell your Gemstone Mixture and any leftover Sludge Juice on the Bazaar or Auction House.
9. Check /cofl task again to see your real coins/hour.

Where to do it

Island

Crystal Hollows

Location

Jungle

Warp

/warp /warp crystals

Wiki

Sludge Mining (Gem Mixture) on the Hypixel SkyBlock wiki

Drops and their value

Item	Per hour	Price each	Coins/hour
Sludge Juice	6.9k	2.4k	16.6M
Gemstone Mixture	1.2	2.1M	2.6M

Related tasks in Mining

• Sapphire Mining – 21.9M coins/hour
• Coal Mining – 20.4M coins/hour
• Tungsten Mining – 15.1M coins/hour
• Flint Mining – 14.8M coins/hour
• Crystal Nucleus – 12.4M coins/hour
• Jade Mining – 11.9M coins/hour
• Umber Mining – 9.6M coins/hour
• Obsidian Mining – 8.9M coins/hour