Stardew Valley: How To Get & Use The Crystalarium

This guide explains how to obtain and utilize the Crystalarium in Stardew Valley, a tool for efficiently producing gemstones and minerals. The 1.6 update introduced subtle changes to its functionality, which are included here.

Obtaining a Crystalarium

The Crystalarium crafting recipe unlocks at Mining Level 9. Required materials include:

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

Alternative acquisition methods:

• Community Center Bundle: Complete the 25,000g bundle in the Vault.
• Museum Donation: Donate 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 multiple Crystalariums.

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 relocate or change the gem being replicated:

• Use an axe or pickaxe to remove it from its location. A gem currently being produced will drop.
• To switch gems, simply interact with the Crystalarium while holding the desired gemstone. The existing gem will be ejected, and the new one will begin production.

Efficiently use the Crystalarium to increase profits and create valuable gifts for Pelican Town's residents. Diamonds, despite their long production time, offer the highest return.