Jem

Jem is an item that is very rarely obtained from opening Copper Chests, Silver Lockboxes, Gold Coffers, and Platinum Strongboxes. It can be transmuted into the Trollface Mask when throwed into shimmer.

Crafting

Result		Ingredients		Crafting Station
	Trollface Mask		Jem	Shimmer Transmutation

v · d · e

Drops •

Ores and

Bars) •

Lore •

Other

Buff Potions
Health	Bottomless Healing • Moon Jelly • Moon Jelly Donut
Attack	Runescribe • Soulguard • Spirit • Sporecoid • Starburn • Steadfast • Toxin
Defense	Mirror Coat • Olive Branch
Movement	Jump • Soaring • Zephyr
Food and Drinks	Acorn Cake • Baguette • Birdhouse Gourd • Bottomless Ale • Caesar Salad • Caramel Apple • Carrot Cake • Crystallized Salmon • Durian • Enchanted Apple Enchanted Star Fruit • Fish n' Chips • Fish Fingers • Ghost Pepper • Glowpear • Golden Caviar • Guava • Honey-Glazed Salmon • Hummus • Ice Berry Jack-o-Gourd • Lumin Berry • Meatballs • Nigiri • Pop Rocks • Popsicle • Ramen • Raw Fish • Rock Candy • Steamed Mussels • Sushi • Tofu Satay
Candies	Candy • Chocolate Bar • Golden Candy • Health Candy • Lollipop • Mana Candy • Mystery Candy • Taffy

Ammunition
Arrows	Accursed Arrow • Beetle Arrow
Bullets	Ripper Slug • Spectre Bullet
Rockets	Warhead
Miscellaneous	Faerie Star
Solutions	Cyan Solution • Olive Solution

Crafting materials
Pre-Hardmode	Bismite Crystal • Brightbulb • Chitin • Deep Cascade Shard • Dreamstride Essence • Enchanted Leaf • Energized Metal • Frigid Fragment Glowroot • Heart Scale • Iridescent Scale • Noxophyll • Old Leather • Slagstone • Stream Scale • Sulfur Deposit • Tech Drive
Hardmode	Ancient Rune • Arcane Geyser • Dusk Shard • Ethereal Ember • G-TEK Components • Nether Crystal • Spirit Koi • Torment Shard
Crafted	Discharge Tubule • Empty Arcane Codex
Herbs	Cloudstalk • Soulbloom

Ores and Bars
Ores	Ancient Marble Chunk • Astralite Shard • Cryolite • Enchanted Granite Chunk • Floran • Spirit
Bars	Cryolite • Floran • Spirit

Lore
Guides	An Alchemist's Observations • Meals on Wheels • The Beginner's Guide to Armor • The Beginner's Guide to Weaponry • The Beginner's Guide to Accessories
Journals	Dag Dinger • Fungal Pilferers • Is Lava Hot? • Jellyfish in the Sky! • Notes on the Briar • Where Do Slimes Come From?
Tales	Amea the Brigand • I'm Really Mad • The Gunslinger
Drawings	Flora of the Briar • Flora of the Spirit Biome • Notes on Ancient Marble Chunks • Notes on Bismite Crystals • Notes on Blossmoons • Notes on Enchanted Granite Chunks Notes on Enchanted Leaves • Notes on Frigid Fragments • Notes on Glowroot • Notes on Heart Scales • Notes on Lumoths • Notes on Soulbloom • The Glowing Ocean!

Other
Summoning	Boss	Bramble Tooth • Dreamlight Jelly • Dusk Crown • Feather Crown • Glade Wreath • Pain Caller • Scarab Idol • Starplate Beacon • Stone Fist
Summoning	Event	Distress Jelly • Martian Transmitter • Sands of Time • Seabreak Pearl • Turquoise Lens
Grab bags	Copper Chest • Floral Seed Bag • Gold Coffer • Mysterious Satchel • Packing Crate • Pirate Loot Crate Platinum Strongbox • Silver Lockbox • Spirit Crate • Thistle Crate • Thorny Crate • Treasure Bag
Seeds	Briar Grass Seeds • Cloudstalk Seeds • Soulbloom Seeds
Quest items	Bloody Tumor • Decrepit Idol • Durasilk Scarf • Grisly Science Experiment • Hornetfish • Hyperborean Artifact Hyperborean Fragment • Hyperborean Relic • Luminous Sac • Photosphere Shard • Royal Crown • Unholy Magic • Violet Crystal
Miscellaneous	Cartographer's Map • Fate Token • Jem • Mystical Dice • Sacred Scripture Secret Key • Surrender Bell • Target Bottle • Target Can • Windshear Pearl