Get the Most Out of Your Crystals with Stardew Valley's Crystalarium

This guide explains how to obtain and utilize the Crystalarium in Stardew Valley, focusing on its updated functionality in version 1.6.

Obtaining a Crystalarium

The Crystalarium recipe unlocks at Mining Level 9. Crafting requires:

• 99 Stone
• 5 Gold Bars (5 Gold Ore + 1 Coal per bar, smelted in a Furnace)
• 2 Iridium Bars (smelted from Iridium Ore found in Skull Cavern or obtained daily from the Statue of Perfection)
• 1 Battery Pack (obtained by placing a Lightning Rod outside during a thunderstorm)

Alternatively, acquire a Crystalarium by:

• Completing the 25,000g Community Center bundle (Vault).
• Donating 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 mineral or gemstone (excluding Prismatic Shards). Quartz has the shortest growth time but low value. Diamonds have the longest (5 days) but highest value.

To relocate 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 old gem will be ejected.

Profit from replicating valuable gems, and use the resulting gems for gifts to improve relationships with villagers.