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|sellprice  = Cannot be sold

|sellprice  = Cannot be sold

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The '''Crystalarium''' will replicate any inserted [[Minerals#Gems|Gem]], [[Minerals#Foraged Minerals|Foraged Mineral]], or [[Minerals#Geode Minerals|Geode Mineral]]. It can be [[Crafting|crafted]] or found in a [[Skull Cavern#Treasure Rooms|treasure room]] in the [[Skull Cavern]]. Note, however, that Crystalariums cannot replicate [[Prismatic Shard]]s. The functions of the Crystalarium are explained in ''[[Lost Books#Technology Report!|Technology Report!]]''.

The '''Crystalarium''' will replicate any inserted [[Minerals#Gems|Gem]], [[Minerals#Foraged Minerals|Foraged Mineral]], or [[Minerals#Geode Minerals|Geode Mineral]]. It can be [[Crafting|crafted]] or found in a [[Skull Cavern#Treasure Rooms|treasure room]] in the [[Skull Cavern]]. Note, however, that Crystalariums cannot replicate [[Prismatic Shard]]s. The functions of the Crystalarium are explained in the Lost Book ''[[Lost Books#Technology Report!|Technology Report!]]''.

One Crystalarium is the reward for donating 50 [[Minerals]] to the [[Museum]]. One Crystalarium is also the reward for completing the {{Bundle|25000|16|y}}.

One Crystalarium is the reward for donating 50 [[Minerals]] to the [[Museum]]. One Crystalarium is also the reward for completing the {{Bundle|25000|16|y}}.

==Tips==

==Tips==

* The most profitable gem to replicate is the [[Diamond]], yielding a profit of {{price|150}} per day if harvested as soon as it is ready (five days). At this rate, the base monetary value of the materials used in crafting the Crystalarium can be recovered in about 32 days (not including a Diamond used to seed it, nor any increase in the value of the crafting materials due to profession bonuses).

* The most profitable gem to replicate is the [[Diamond]], yielding a profit of {{price|150}} per day if harvested as soon as it is ready (five days). At this rate, the base monetary value of the materials used in crafting the Crystalarium can be recovered in about 32 days (not including a Diamond used to seed it, nor any increase in the value of the crafting materials due to profession bonuses).

* Only 7 hours is required to replicate [[Quartz]], the shortest time span for any mineral. While the Crystalarium is thus an efficient source of Quartz for making [[Refined Quartz]], Quartz is found abundantly during mining and making Refined Quartz still requires [[Coal]] for smelting. Refined Quartz can also be produced directly in a [[Recycling Machine]] from [[Broken Glasses]] and [[Broken_CD]]s, without needing coal.

* Only 7 hours is required to replicate [[Quartz]], the shortest time span for any mineral. While the Crystalarium is thus an efficient source of Quartz for making [[Refined Quartz]], Quartz is found abundantly during mining and making Refined Quartz still requires [[Coal]] for smelting. Refined Quartz can also be produced directly in a [[Recycling Machine]] from [[Broken Glasses]] and [[Broken CD]]s, without needing coal.

**Five Quartz can be traded at the [[Desert Trader]] for 1 [[Bomb]], making the replication of Quartz in Crystalariums a more efficient method of obtaining Bombs than purchasing them from the [[Dwarf]]'s shop for {{price|600}} each.

**Five Quartz can be traded at the [[Desert Trader]] for 1 [[Bomb]], making the replication of Quartz in Crystalariums a more efficient method of obtaining Bombs than purchasing them from the [[Dwarf]]'s shop for {{price|600}} each.

* The Crystalarium can replicate [[Jade]] for trading with the [[Desert Trader]] for [[Staircase]]s on [[Days of the Week#Sunday|Sundays]]. This can save countless hours gathering stone.

* The Crystalarium can replicate [[Jade]] for trading with the [[Desert Trader]] for [[Staircase]]s on [[Days of the Week#Sunday|Sundays]]. This can save countless hours gathering stone.

* When changing the gem in a Crystalarium, first break the Crystalarium to get the seeded gem back (otherwise the gem in the Crystalarium will be lost and replaced with the new gem). Then place it down again and insert the new gem.

* When changing the gem in a Crystalarium, first break the Crystalarium to get the seeded gem back (otherwise the gem in the Crystalarium will be lost and replaced with the new gem). Then place it down again and insert the new gem.

==History==

==History==

{{history|1.3.27|Removed an exploit that replaced a ready-to-harvest mineral with a more expensive mineral.}}

{{history|1.3.27|Removed an exploit that replaced a ready-to-harvest mineral with a more expensive mineral.}}