Description
A fusion of supreme whetstones and twinkling shells. Further unlocks the special properties of equipment.
As a late-game material resource, 
Mighty Jewels are used for upgrading equipment at the Smithing Station to level 9. This specific material can only be used to upgrade equipment with the “Mighty” prefix or equipment with no prefix at all. To craft this crucial resource, you’ll need 
Supreme Whetstones, and 
Twinkling Shells which have a limited amount.
How to Find this Item
You won’t be able to craft this resource until you have unlocked it in your ASL Terminal. This can be achieved by obtaining the “Advanced Smithing: Mighty Jewel” recipe which can be acquired by finding the Stump BURG.L Chip. You’ll find this chip at the end of the Stump Lab Outpost which is in the Upper Grasslands area. When you have it unlocked in the terminal, you’ll need to pay the cost of 2,500 Raw Science to be able to craft it.
As mentioned above, you’ll need 2x Supreme Whetstones, and 1x Twinkling Shell for every Mighty Jewel that you craft. You’ll unlock the recipe for Supreme Whetstones in the same recipe for Mighty Jewels, so you won’t have to worry about unlocking it. To craft the whetstones you’ll need a 
Supreme Quartzite Shard which you can find in some locations in the links below.
For Twinkling Shells, you’ll need to find 
Scarabs which can be tough to find as they are on the rarer side of things. You can find one of these west of the Barbecue in the northwest of the map, north of the Picnic Table.
Once you have the required materials, head over to your Smithing Station to craft the Jewel.
