Stardew Valley Crystalarium Guide

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Ella is SdewHQ's resident virtual farming expert, and whether she is farming, fishing, mining, or decorating her farmhouse, you can rest assured that she is loving every second. Outside of the Stardew universe Ella is a keen gamer and particularly loves titles like Horizon Zero Dawn, The Outer Worlds, and her childhood favorite, Monster's Inc Scare Island. Ella is also a gaming UX researcher, has a keen interest in acccessibity within games and strives to fill up her PS trophy cabinet upon every gaming session.

What is a Crystalarium?

The Crystalarium is a machine that you can craft and can then be used to replicate pretty much any Crystal (Other than the Prismatic Shard) Geode Mineral or Foraged Mineral that you uncover within the game. To use the Crystalarium, you insert the item which you want to replicate, and the Crystalarium will then begin to replicate this item indefinitely.

Each copy of your item can then be collected from the Crystalarium and sold or gifted onward; proceed with caution, however, as you can only replicate one item per Crystalarium. For example, if you place a Diamond inside (which is usually my go-to), the machine will only produce Diamonds, and you can not change this.

You will be able to tell when an item is ready to collect as while the item is being created; the Crystalarium will shake; however, when the item is ready for you to collect, you will notice that the Crystalarium is suddenly still. To gather your item, you simply approach the Crystalarium and select the item.

How Do I Get a Crystalarium?

You Can Receive It as a Reward

There are a few different routes available to uncover the Crystalarium. It can be gifted to you if you are first able to donate fifty items to the town Museum (Which can take some time, so if you are eager to get this, this may not be the best option). The Crystalarium can also be gifted to you if you can complete the 25,000g Bundle within the Vault in the Community Centre. To complete this Bundle, you need to save 25,000g and donate this amount.

You Can Uncover It By Exploring

You can also find the Crystalarium if you explore the Skull Cavern, which is located in Cavern in the Desert. To find this, you must first uncover Treasure Rooms, which are found once you explore beyond level ten. Your ability to find the Treasure Room depends on your luck that day; while there is a range of items available to uncover, the chances of uncovering the Crystalarium are one in twenty-six.

You Can Craft This For Yourself

You can also receive a Crystalarium by creating it yourself! To do this, you will need 99x Stones, 5x Gold Bars, 2x Iridium Bars, and 1x Battery Pack. If you are new to crafting, do not worry, as I will explain how to obtain each of these key ingredients.

To gather Stones, you break up large chunks of Stone using the Pickaxe; Stones can be found on your farm or in the Mines. To Smelt one Gold Bar, you will require 5x Gold Ores and 1x Coal, both of which should be placed inside a furnace which will turn the ore into a bar instead, which takes five hours. To Smelt an Iridium Bar, you require 5x Iridium Ores and 1x Coal.

To create a Battery Pack, you must place a Lightning Rod on your farm and wait for lightning to strike, and then collect the Battery Pack. If you do not have a Furnace, you can create one by using 25x Stones and 20x Copper Ores.

Gold Ore can be found at level eighty onwards in the Mines and so can take quite a while to locate as the levels get more challenging as you progress. Iridium can be found in the Skull Cavern in the Desert. To receive the recipe for the Crystalarium, you will require Mining Level Nine.

What Can You Make in the Crystalarium?

The Crystalarium is an attractive option when it comes to crafting, as it can produce a wide variety of Crystals or Minerals; the only catch, of course, is that you require at least one of the Crystals or Minerals you want to duplicate. Below is a list of all the options available to you when it comes to selecting what you would like to make (In order of most to least lucrative);

Diamond; Sells for 750g
Star Shards; Sells for 500g
Helvite; Sells for 450g
Neptunite; Sells for 400g
Fire-Opal; Sells for 350g
Bixite; Sells for 300g
Dolomite; Sells for 300g
Tigerseye; Sells for 257g
Emerald; Sells for 250g
Ruby; Sells for 250g
Quartz; Sells for 250g
Kyanite; Sells for 250g
Fairy Stone; Sells for 250g
Ocean Stone; Sells for 220g
Jade; Sells for 200g
Lemon Stone; Sells for 200g
Fluorapatite; Sells for 200g
Lunarite; Sells for 200g
Ghost Crystal; Sells for 200g
Obsidian; Sells for 200g
Aquamarine; Sells for 180g
Basalt; Sells for 175g
Opal; Sells for 150g
Alamite; Sells for 150g
Jamborite; Sells for 150g
Geminite; Sells for 150g
Jasper; Sells for 150g
Hematite; Sells for 150g
Aerinite; Sells for 125g
Celestine; Sells for 125g
Petrified Slime; Sells for 120g
Pyrite; Sells for 120g
Soapstone; Sells for 120g
Jagoite; Sells for 115g
Marble; Sells for 110g
Amethyst; Sells for 100g
Fire Quartz; Sells for 100g
Esperite; Sells for 100g
Malachite; Sells for 100g
Thunder Egg; Sells for 100g
Slate; Sells for 85g
Orpiment; Sells for 80g
Nekoite; Sells for 80g
Granite; Sells for 75g
Calcite; Sells for 75g
Frozen Tear; Sells for 75g
Topaz; Sells for 80g
Sandstone; Sells for 60g
Baryte; Sells for 50g
Earth Crystal; Sells for 50g
Mudstone; Sells for 25g
Quartz; Sells for 25g
Limestone; Sells for 15g

You can get the vast majority of these items through either exploring the Pelican Town Mine, the Skull Cavern in the Calico Desert or the Volcano Dungeon on Ginger Island. Or, you can break open standard geodes, an Omni geode, a magma geode or a frozen geode.

It is important to note that the more expensive items, such as the Diamond and Star Shards, take much longer to duplicate than the less expensive items like Quartz or Limestone. Diamonds take five days to duplicate, Star Shards take three days, eleven hours, and twenty minutes, while Quartz, however, only takes seven hours.

What Is The Best Thing to Put In The Crystalarium?

If your goal is to bring in profits and to make good money, the best option for you is to begin to replicate the Diamond. Diamonds sell for 750g, which is why they take a full five days to create, and so require some patience. This should not dissuade you, however, as you can still produce five Diamonds each season, which would bring you 3,750g per season.

This is, of course, only the result of one Crystalarium, so you can imagine the potential profits if you create multiple Crystalariums and place a Diamond within each one (Which I would highly suggest)

Not only do they sell for a great price, but Diamonds also make great gifts as every character within the Town either likes or loves Diamonds and so gifting them with a Diamond will improve your relationship with them either platonically or romantically.

If you are eager to progress in the Mines, you may want to build an additional Crystalarium for Quartz, as you can trade five pieces of Quartz for one Bomb, which can, in turn, be used to aid you in the Mines by causing an explosion which will defeat enemies and open Stones and Geodes. This is particularly attractive as Quartz takes a short amount of time (Only seven hours)

You can also create Jade, as this can be used to trade for Staircases from the Desert Trader, which can assist you within the Mines or the Skull Cavern in the Calico Desert.

FAQs

Question: How do I craft a Crystalarium?

Answer: To craft a Crystalarium, you will need;
Mining level nine (To receive the recipe for the Crystalarium)
99x Stones
5x Gold Bars
2x Iridium Bars
1x Battery Pack

Question: Is there a limit to how many Crystalariums I can have?

Answer: None at all! You can craft as many Crystalariums as you have room for (both indoors and outdoors), and indeed I highly recommend I do as it is an extremely lucrative way to bring in more money for your farm, which you can use to purchase valuable items and crops.

Question: How do I change the item in my Crystalarium?

Answer: Technically speaking, you can not change this once placed; however, if you hit the Crystalarium with your Axe, it will lift it and place it back in your inventory which you can then place again elsewhere. When you replace the Crystalarium, you will be able to select a new item to replicate.