Black Opal in Coral Island is among the various rare and precious gemstones that you will discover as you venture into the mines. Black Opal, in particular, is a must-find item for the Precious Gems Altar at Goddess’ Temple.
Here’s how you can get your hands on this gemstone and use it for various activities around Coral Island.
Where To Find Black Opal In Coral Island
You can find Black Opal inside Earth or Mystery Geodes when mining on Coral Island. These gemstones do spawn randomly inside the mines and can be collected while breaking rocks, but the chance of finding them inside geodes is higher.
After you have collected your geodes, go to the Blacksmith and break open each geode for 20 coins. And if you’re lucky, you’ll end up with a Black Opal gemstone. Other than that, you can buy the geodes from the Blacksmith’s shop or replicate them using a Slime of Replication machine.
Related: How To Upgrade Fishing Rod in Coral Island
Slime Of Replication
Coral Island’s Slime of Replication machine is a godsend if you already have Black Opal and want to have more of it. This machine is unlocked after you have reached level 10 Combat skills. It duplicates your gems, fossils, artifacts, ores, bars, kelps, and kelp essences to yield double the product.
The ingredients needed to make one are:
- 20x Slime Goop
- 5x Gold Bar
- 2x Osmium Kelp essence
- 30x Glass
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Black Opal Uses In Coral Island
Black Opal being a rare gemstone has many uses in the game. They include:
- Offering at the Precious Gems Altar
- Well-loved NPC gift (except Pablo)
- As a donation to the Museum
- Black Opal can be used to enchant your tools in the game. It gives 70 enchantment points making this gem super useful.
- Sold for 351 Coins
That’s all for this Black Opal guide. For more Coral Island content, check out our article on 15 Essential Beginner Tips for Coral Island or learn how to get Sprinkler III in the game.
