Stardew Valley: Crystalarium Guide & Uses

This article is part of a directory: Stardew Valley: A Complete Guide and Walkthrough

While Stardew Valley centers around farming, there's much more to the game than just crops and livestock. Players work to turn their humble farms into profitable ventures, with gemstones being particularly valuable assets. These shiny minerals aren't just pretty - they're useful for crafting and make excellent gifts for villagers.

Mining for rare gems can become tedious over time. That's where the comes into play. This remarkable device lets players duplicate gemstones and minerals effortlessly. Here's everything you need to know about maximizing its potential.

Updated January 6, 2025: The 1.6 update introduced significant changes to Stardew Valley, including subtle adjustments to high-tier items like the Crystalarium. This guide has been refreshed to cover all the latest mechanics regarding placing and modifying these devices.

Obtaining A Crystalarium

To unlock the Crystalarium blueprint, reach Mining skill level 9. Crafting requires:

• 99 : Easily obtained by breaking rocks on your farm or in the Mines
• 5 : Mine gold ore below level 80 and smelt with coal
• 2 : Found in Skull Cavern or from the Statue of Perfection
• 1 : Produced by lightning rods during storms

Alternative ways to acquire a Crystalarium:

• Complete the 25,000g Bundle in the Community Center vault
• Receive one from Gunther after donating 50 minerals to the Museum

Using The Crystalarium

Crystalariums can be placed anywhere - indoors, outdoors, or even in the Quarry, which makes an excellent location for large-scale gem production.

The device replicates any mineral or gemstone except Prismatic Shards. While replicates fastest, offers the highest profitability despite its 5-day replication time.

To relocate a Crystalarium, strike it with your pickaxe or axe. Any replicating gem will drop. Changing the gem inside is simple - just interact with the device while holding a new mineral to replace the current one.

With strategic gem placement, players can significantly boost their income while ensuring they always have perfect gifts for villagers. Diamonds remain the top choice, being both valuable and universally loved.