Stardew Valley 
Neptunite – Museum Donation Guide
The Neptunite is a mineral that can be donated to the Stardew Valley Museum.
Sell price: 400g
Found in: Magma Geode, Omni Geode, Black Slime
Donation note: No extra donation note is recorded in the open data.
Tips
- Donate the first of each item, then sell duplicates.
- Minerals sell for more with the Gemologist profession when applicable.
Frequently Asked Questions
Where can I find the Neptunite?
The Neptunite can be found in: Magma Geode, Omni Geode, Black Slime.
How much does the Neptunite sell for?
The Neptunite sells for 400g (520g with the Gemologist profession).
Should I donate the Neptunite to the Museum?
Donations unlock museum rewards; duplicates can be sold. Donation note: No extra donation note is recorded in the open data.