Firefly Stone
A glowing stone left behind by dying fireflies.
Where to find it
Ranked by drop rate. Yields are what you'd expect in 1 h at 2,400 minerals/hour. Bars are log-scaled — each step is 10× rarer.
Crafts into
Firefly Stone is an ingredient in 2 recipes.
Ring of Thorns
MythicAntlers of Life
ExoticAlso needed for
Recipes on other mineral pages that call for this.
Your luck
Odds update as you change this.
Boosts you control
These add together — two ×2 boosts give ×3, not ×4.
Active events
Multiplicative events stack on top of everything, and on each other.
Rose Rain and Egg Hunt also boost Luck, but the wiki doesn’t say by how much — so they aren’t listed above.
Your pace
Turns odds into time.
Session length
10.0 minerals per cycle — the wiki gives this as √capacity.
Your number, not the game’s — the wiki doesn’t publish cycle timings, so time a few digs and set it here.
Modelled from the wiki’s Luck Mechanics and Events: each point of Luck rerolls the rarity number and the lowest roll wins. Two limits worth knowing — the wiki never says what Luck its drop tables assume, so we take them as Luck 1; and the game applies an undocumented dampening that stops high Luck making commons unobtainable. Treat these as an optimistic upper bound, best trusted while a mineral is still a long shot.
With a modifier
All 23 →$1.5M/kg is the unmodified price. A modifier multiplies it.
- Perfect24×$36M
- Treasured15×$22.5M
- Lunar14×$21M
- Voidtorn11×$16.5M
- Mutated9×$13.5M
Museum donation
Plan it →- Goes in a display
- Legendary × 3
- Min weight for max boost
- 60kg
- Capacity+0.3×
Go here
Your best shot at Firefly Stone
Timelocked Sanctuaryin Fungal Marsh →1 in 18.4M per pull
This site holds 25 minerals, averaging $3.58K of value per pull.