Unlock Infinite Gems with Stardew Valley's Crystalarium

This guide explains how to obtain and utilize the Crystalarium in Stardew Valley, a valuable tool for gemstone farming. The 1.6 update introduced subtle changes to its functionality, which are addressed here.

Obtaining a Crystalarium

To craft a Crystalarium, you need:

• 99 Stone: Easily found by breaking rocks.
• 5 Gold Bars: Smelt Gold Ore (found at mine levels 80 and below) using a Furnace and Coal.
• 2 Iridium Bars: Mine Iridium in Skull Cavern or obtain it daily from the Statue of Perfection (then smelt).
• 1 Battery Pack: Obtained by placing Lightning Rods outside during thunderstorms.

Alternatively, you can obtain a Crystalarium by:

• Completing the 25,000g Community Center bundle in the Vault.
• Donating at least 50 minerals (gemstones or geodes) to the Museum.

Using the Crystalarium

Place the Crystalarium anywhere – indoors or outdoors. The Quarry is a popular location for mass production.

The Crystalarium replicates any mineral or gemstone (except Prismatic Shards). Quartz has the shortest growth time but low value. Diamonds have the longest (5 days) but highest 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 machine while holding the desired gem. The current gem will be ejected, and the new one will begin replicating.

By using Crystalariums, you can significantly increase your gemstone profits and create valuable gifts for Pelican Town's residents.