Gems & Minerals Guide
Stardew Valley features 53 donatable minerals divided into four categories: Foraged Minerals, Gems, Geode Minerals, and Geodes. This guide covers every mineral, where to find it, its sell price, and the best strategies for completing your Museum collection.
TL;DR
There are 8 gems (Diamond is 750g, Prismatic Shard is 2,000g), 4 foraged minerals (Quartz to Fire Quartz), and 33 geode minerals (extracted from Geodes, Frozen Geodes, and Magma Geodes). The Gemologist profession (Mining Lv 10, Geologist branch) adds 30% to all mineral sell prices. Break geodes at Clint’s (25g each) or build a Geode Crusher (free processing). All gems can be used for weapon forging at the Volcano Forge.
Mineral Categories
| Category | Count | Source | Museum Donation |
|---|---|---|---|
| Foraged Minerals | 4 | Ground in Mines/Skull Cavern | Yes |
| Gems | 8 | Gem Nodes, Omni Geodes, monster drops | Yes |
| Geode Minerals | 33 | Processed from Geodes (3 types) | Yes |
| Geodes | 4 | Mining, fishing, tilling | No (containers, not minerals) |
Total donatable minerals: 53
Gems
Gems are the most valuable minerals and have the widest range of uses: forging weapons, crafting, tailoring, and gifting.
All Gems
| Gem | Sell Price | Gemologist | Node Source | Key Uses |
|---|---|---|---|---|
| Diamond | 750g | 974g | Diamond Node, Omni Geode, monsters post-floor 120 | Ring of Yoba, Geode Crusher; loved by Evelyn, Gus, Jodi, Krobus, Marnie, Maru, Penny, Willy |
| Prismatic Shard | 2,000g | 2,600g | Iridium Node, Mystic Stone, Omni Geode | Galaxy Sword (Desert); enchant tools/weapons; loved by all except Haley |
| Emerald | 250g | 325g | Emerald Node, Omni Geode | Loved by Clint, Dwarf, Emily, Penny |
| Ruby | 250g | 325g | Ruby Node, Omni Geode | Loved by Clint, Dwarf, Emily |
| Jade | 200g | 260g | Jade Node, Omni Geode | Loved by Clint, Dwarf, Emily |
| Aquamarine | 180g | 234g | Aquamarine Node, Omni Geode | Loved by Clint, Dwarf, Emily |
| Amethyst | 100g | 130g | Amethyst Node, Omni Geode | Loved by Abigail, Clint, Dwarf, Emily |
| Topaz | 80g | 104g | Topaz Node, Omni Geode | Loved by Clint, Dwarf, Emily |
Gem Value Tiers
| Tier | Gems | Base Sell |
|---|---|---|
| Ultra | Prismatic Shard | 2,000g |
| High | Diamond | 750g |
| Medium-High | Emerald, Ruby | 250g |
| Medium | Jade | 200g |
| Medium-Low | Aquamarine | 180g |
| Low-Medium | Amethyst | 100g |
| Low | Topaz | 80g |
Foraged Minerals
Found on the ground in the Mines and Skull Cavern. The Gatherer profession (Foraging Lv 10) doubles foraged mineral drops.
| Mineral | Sell | Gemologist | Mine Floors | Other Sources |
|---|---|---|---|---|
| Quartz | 25g | 32g | 1-120 | Garbage Can, Stone Golem |
| Earth Crystal | 50g | 65g | 1-39 | Duggy, Geode, Omni Geode, Panning |
| Frozen Tear | 75g | 97g | 40-79 | Dust Sprite, Frozen Geode, Omni Geode, Panning |
| Fire Quartz | 100g | 130g | 80-120 | Magma Geode, Omni Geode, Panning |
Community Center Bundle
All 4 foraged minerals are needed for the Geologist’s Bundle in the Crafts Room. They spawn on the ground in their respective mine floor ranges — visit the mines regularly and pick up everything you see.
Geode Minerals (33 Items)
Geode minerals are extracted by processing geodes. Clint charges 25g per geode, or you can build a Geode Crusher (2x Coal + 50x Stone + 1x Gold Bar) for free processing.
Geode Minerals (Floors 1-39)
| Mineral | Sell | Gemologist | Notes |
|---|---|---|---|
| Alamite | 150g | 195g | |
| Calcite | 75g | 97g | |
| Celestine | 125g | 162g | |
| Jamborite | 150g | 195g | |
| Jagoite | 115g | 149g | |
| Malachite | 100g | 130g | |
| Nekoite | 80g | 104g | |
| Orpiment | 80g | 104g | |
| Petrified Slime | 120g | 156g | Fish Pond quest item |
| Thunder Egg | 100g | 130g | |
| Sandstone | 60g | 78g | |
| Granite | 75g | 97g | Fish Pond quest item |
| Limestone | 15g | 19g | Fish Pond quest item |
| Slate | 85g | 110g |
Frozen Geode Minerals (Floors 41-79)
| Mineral | Sell | Gemologist | Notes |
|---|---|---|---|
| Opal | 150g | 195g | |
| Aerinite | 125g | 162g | |
| Esperite | 100g | 130g | |
| Fluorapatite | 200g | 260g | |
| Geminite | 150g | 195g | |
| Kyanite | 250g | 325g | |
| Lunarite | 200g | 260g | |
| Pyrite | 120g | 156g | |
| Ocean Stone | 220g | 286g | Fish Pond quest item |
| Ghost Crystal | 200g | 260g | |
| Marble | 110g | 143g | Used in Marble Brazier |
| Soapstone | 120g | 156g | |
| Hematite | 150g | 195g | |
| Fairy Stone | 250g | 325g |
Magma Geode Minerals (Floors 81-120)
| Mineral | Sell | Gemologist | Notes |
|---|---|---|---|
| Tigerseye | 275g | 357g | Sam loved gift |
| Fire Opal | 350g | 455g | |
| Bixite | 300g | 390g | |
| Baryte | 50g | 65g | |
| Dolomite | 300g | 390g | |
| Helvite | 450g | 585g | Highest-value geode mineral |
| Neptunite | 400g | 520g | |
| Lemon Stone | 200g | 260g | Dwarf loved gift |
| Jasper | 150g | 195g | |
| Basalt | 175g | 227g | Fish Pond quest item |
| Obsidian | 200g | 260g | Sebastian loved gift |
| Star Shards | 500g | 650g |
Top 10 Most Valuable Geode Minerals
| Rank | Mineral | Sell | Geode Type |
|---|---|---|---|
| 1 | Star Shards | 500g | Magma |
| 2 | Helvite | 450g | Magma |
| 3 | Neptunite | 400g | Magma |
| 4 | Fire Opal | 350g | Magma |
| 5 | Dolomite | 300g | Magma |
| 6 | Bixite | 300g | Magma |
| 7 | Kyanite | 250g | Frozen |
| 8 | Fairy Stone | 250g | Frozen |
| 9 | Tigerseye | 275g | Magma |
| 10 | Fluorapatite | 200g | Frozen |
Geode Types
| Geode | Sell | Source Floors | Processing |
|---|---|---|---|
| Geode | 50g | Mines 1-39 | Regular minerals (14 types) |
| Frozen Geode | 100g | Mines 41-79 | Frozen minerals (14 types) |
| Magma Geode | 150g | Mines 81-120, Skull Cavern | Magma minerals (12 types) |
| Omni Geode | 0g | Anywhere | Can contain ANY mineral or gem |
Omni Geode Sources
Omni Geodes are the most versatile source and can be obtained from:
- Mining any floor in the Mines or Skull Cavern
- Carbon Ghost kills (Skull Cavern)
- Panning in rivers and lakes
- Krobus shop (Tuesdays, 300g)
- Oasis shop (Wednesdays, 1,500g for 5)
- Ginger Island artifact spots
- Fishing treasure chests
The Gemologist Profession
At Mining Level 10, choosing the Geologist branch gives you the Gemologist profession:
| Effect | Details |
|---|---|
| Sell Price Bonus | +30% on all minerals and gems |
| Stacks with | Tiller? No (separate skill). Crafts? No. Only mineral sell prices |
Gemologist vs Excavator
| Profession | Effect | Best For |
|---|---|---|
| Gemologist | +30% mineral sell prices | Players who sell many minerals |
| Excavator | Double geode yield chance | Players who want more geodes to crack |
If you primarily process geodes for the Museum, Excavator is better. If you sell most minerals for gold, Gemologist earns more over time. Both are viable.
Museum Completion Tips
- Build a Geode Crusher ASAP (2 Coal + 50 Stone + 1 Gold Bar) — saves 25g per geode processed
- Save Omni Geodes for minerals you’re missing — they can contain anything
- Check Gunther’s missing list frequently by visiting the Museum
- Mine specific floors for missing minerals (e.g., floors 1-39 for Geode minerals)
- Use the “track quests” feature to see which minerals you still need
- Geode minerals are mostly disliked as gifts — the Wizard likes all of them, but everyone else dislikes them
Gifting Guide for Gems
| Gem | Best Recipient(s) | Reaction |
|---|---|---|
| Diamond | Evelyn, Gus, Jodi, Krobus, Marnie, Maru, Penny, Willy | Loved (+80) |
| Prismatic Shard | Everyone except Haley | Loved (+80) |
| Emerald | Clint, Dwarf, Emily, Penny | Loved (+80) |
| Ruby | Clint, Dwarf, Emily | Loved (+80) |
| Aquamarine | Clint, Dwarf, Emily | Loved (+80) |
| Jade | Clint, Dwarf, Emily | Loved (+80) |
| Amethyst | Abigail, Clint, Dwarf, Emily | Loved (+80) |
| Topaz | Clint, Dwarf, Emily | Loved (+80) |
Diamond is the best universal gift — 8 NPCs love it. Prismatic Shard is loved by 34 NPCs but much harder to obtain.
Frequently Asked Questions
How do I get a Prismatic Shard?
Prismatic Shards can be obtained from: Iridium Nodes (4% chance), Mystic Stones in Skull Cavern (25% chance), Omni Geodes (0.4%), killing Shadow Brutes/Shamans (0.05%), killing Serpents and Mummies (0.1%), or purchased rarely from the Traveling Cart.
Should I donate or sell my first Diamond?
Donate your first Diamond to the Museum for the reward. After that, sell extras — Diamonds sell for 750g (974g with Gemologist) and are loved gifts for 8 NPCs.
Is the Geode Crusher worth building?
Yes. It costs 2 Coal + 50 Stone + 1 Gold Bar to build, and it processes geodes for free. If you process more than 20 geodes, it has already paid for itself compared to paying Clint 25g each.
What happens when I complete the mineral collection?
Completing all mineral donations earns you the Rusty Key from Gunther, which unlocks the Sewer where Krobus lives. This is required for certain quests and achievements.
Last Updated: July 2026 | Game Version: 1.6.15