This guide details how to obtain and utilize Prismatic Shards in Stardew Valley, updated for version 1.6. These rare, rainbow-colored gemstones are valuable for crafting, gifting, and completing quests.

Prismatic Shard Locations:
Several locations offer a chance to find Prismatic Shards, though the odds vary:
- Mines (Bottom): 0.05% chance from monsters.
- Fish Ponds (Rainbow Trout): 0.09% chance from chum buckets (requires at least 9 Rainbow Trout).
- Skull Cavern: 0.1% chance from Serpents, Mummies, Wilderness Golems, and Iridium Golems (Combat Level 10+).
- Geodes & Boxes: 0.4% chance from Omni Geodes and Mystery Boxes; 0.79% from Golden Mystery Boxes.
- Iridium Nodes: 3.5% chance from Iridium Nodes in Skull Cavern, Volcano Dungeon, or Quarry.
- Treasure Chests (Skull Cavern): Approximately 3.8% chance.
- Mystic Nodes: 25% chance from Mystic Nodes (Skull Cavern, Quarry, Mines levels 100+).
- Meteorites: 25% chance from meteorites landing on your farm.
- Volcano Dungeon (First Completion): One shard in a chest.
- Desert Festival (Emily's Stall): One shard for 500 Calico Eggs (if Emily has a stall).

The most reliable method is the Statue of True Perfection, yielding one shard daily after achieving 100% perfection (see guide for details).
Prismatic Shard Uses:
- Museum Donation: Contributes to the "Complete Collection" achievement.
- Selling: 2000g each.
- Crafting: Ingredient for the Missing Bundle (Movie Theater unlock) and the Wedding Ring (multiplayer).
- Gifting: Loved gift for most villagers (except Haley).
- Galaxy Sword: Crafting ingredient for the Galaxy Sword (obtained at the Calico Desert obelisks).
- Volcano Forge Enchantments: Used to enchant tools and weapons.
- Trades: Three Prismatic Shards trade for Magic Rock Candy (Calico Desert trader, Thursdays). Alternatively, trade one to the Witch for a dark ritual.
- Quests: Required for Mr. Qi's Four Precious Stones quest.

This comprehensive guide should significantly improve your chances of acquiring and effectively using Prismatic Shards in your Stardew Valley adventures. Remember that luck plays a role, so persistence is key!