The Ultimate Guide to Unlocking and Utilizing the Stardew Valley Crystalarium

This guide details how to obtain and utilize the Crystalarium in Stardew Valley, a valuable tool for gem and mineral replication. Note that this guide reflects the mechanics as of the 1.6 update.

Obtaining a Crystalarium

There are several ways to acquire a Crystalarium:

• Crafting: Reach Mining Level 9 to unlock the recipe. Required materials include:

  • 99 Stone
  • 5 Gold Bars (crafted from Gold Ore at a Furnace)
  • 2 Iridium Bars (crafted from Iridium Ore at a Furnace)
  • 1 Battery Pack (obtained from a Lightning Rod struck by lightning)

• Community Center: Complete the 25,000g bundle in the Vault.

• Museum: Donate at least 50 minerals (gemstones or geodes) to the museum.

Using the Crystalarium

Place the Crystalarium anywhere (indoors or outdoors). Popular locations include the Quarry for mass production.

The Crystalarium replicates any gemstone or mineral (except Prismatic Shards). Growth times vary:

• Quartz: Fastest growth time, but low sale value.
• Diamond: Slowest growth time (5 days), but highest sale value.

To move a Crystalarium, hit it with an axe or pickaxe. Any gem currently being replicated will drop. To change the gem being replicated, simply interact with the Crystalarium while holding the desired gem. The current gem will be ejected, and the new one will begin replicating.

This efficient method significantly boosts profits and provides valuable gifts for Pelican Town's residents.