View source for Crystal chest

[[File:Crystal chest.png|thumb|The crystal chest]]
The '''Crystal chest''' is the unofficial name of a treasure chest in [[Taverley]] that is famous for containing [[dragonstone]]s, among other things. The chest is locked and can only be opened by a [[Crystal key]]. The crystal key is made up of a [[loop half of a key]] and the [[tooth half of a key]]; you can acquire the Crystal key by using them with each other. The crystal key sells for more than most of the rewards, making it more monetarily satisfying to sell the key. When the key is used it disappears, so opening the chest is a gamble. Some times the chest will award more than one of these rewards, so you can end up with multiple amounts of the reward.

Attempting to open the chest without the crystal key yields the message: "This chest is securely locked shut."

[[File:Crystal_chest_location.png|thumb|Crystal chest location]]

==Contents and value analysis==
The chest loot always includes an [[uncut dragonstone]] and will normally include another random reward, but not always. Below are the values of the chest's contents, based on current Grand Exchange prices. Most times you have a 9 out of 16 chance to make a profit, or a 56.25% chance, however this can fluctuate due to the price of the crystal key. A [[Ring of Wealth]] now increases your chances of getting a better drop since it got updated. The frequencies below are based on a batch of 3,354 keys. It is only possible to obtain Rune Platelegs if you are a male character, and Rune Plateskirts if you are female character. These tests were done on a male character, and there were no Rune Plateskirts received. Tests on a female character have shown Rune Plateskirts as a reward.
It is a common misconception that you can obtain a Crystal Shield or a Crystal Bow from the chest. The chest does '''not''' contain either of these items, as they are a quest reward.<br />
<br />
<br />
:{|width="90%" class="wikitable sortable"
!style="width:200px" class="unsortable"|Image
!class="unsortable"|Possible loot
!style="width:100px"|Profit/Loss
!style="width:100px"|Frequency (Approx.)
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Spinach roll.png|Spinach roll]][[File:Coins 1000.png|Coins]]
|[[Uncut dragonstone]], [[spinach roll]], and 2000 [[coins]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+2000-{{:Exchange:Crystal key|View=price}}}}
|39.69%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]]
|[[Uncut dragonstone]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}-{{:Exchange:Crystal key|View=price}}}}
|16.72%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Air rune.png|Air rune]][[File:Body rune.png|Body rune]][[File:Earth rune.png|Earth rune]][[File:Fire rune.png|Fire rune]][[File:Mind rune.png|Mind rune]][[File:Water rune.png|Water rune]][[File:Chaos rune.png|Chaos rune]][[File:Cosmic rune.png|Cosmic rune]][[File:Death rune.png|Death rune]][[File:Nature rune.png|Nature rune]][[File:Law rune.png|Law rune]]
|[[Uncut dragonstone]], 50 of each elemental [[runes|rune]], 50 [[body rune|body]] and [[mind rune|mind]] runes, 10 of all other runes, excluding [[blood rune|blood]], [[astral rune|astral]], armadyl rune, and [[soul rune|soul]] runes
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:runes|50*{{:Exchange:Air rune|View=price}}+50*{{:Exchange:Body rune|View=price}}+50*{{:Exchange:Earth rune|View=price}}+50*{{:Exchange:Fire rune|View=price}}+50*{{:Exchange:Mind rune|View=price}}+50*{{:Exchange:Water rune|View=price}}+10*{{:Exchange:Chaos rune|View=price}}+10*{{:Exchange:Cosmic rune|View=price}}+10*{{:Exchange:Death rune|View=price}}+10*{{:Exchange:Dust rune|View=price}}+10*{{:Exchange:Lava rune|View=price}}+10*{{:Exchange:Mist rune|View=price}}+10*{{:Exchange:Mud rune|View=price}}+10*{{:Exchange:Nature rune|View=price}}+10*{{:Exchange:Smoke rune|View=price}}+10*{{:Exchange:Steam rune|View=price}}+10*{{:Exchange:Law rune|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|7.73%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Rune bar.png|Rune bar]]
|[[Uncut dragonstone]] and 3 [[Rune bar]]s
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:runebar|3*{{:Exchange:Rune bar|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|3.51%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Coal.png|Coal]]
|[[Uncut dragonstone]] and 100 [[coal]] (noted)
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:coal|100*{{:Exchange:Coal|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|6.55%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Iron ore.png|Iron ore]]
|[[Uncut dragonstone]] and 150 [[iron ore]] (noted)
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:iron|150*{{:Exchange:Iron ore|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|2.75%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Ruby.png|2 cut rubies]][[File:Diamond.png|2 cut diamonds]]
|[[Uncut dragonstone]], 2 cut [[Ruby|rubies]], and 2 cut [[diamond]]s
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:rubydiam|2*{{:Exchange:Ruby|View=price}}+2*{{:Exchange:Diamond|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|4.23%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Coins 1000.png|Coins]][[File:Raw swordfish.png|Raw swordfish]]
|[[Uncut dragonstone]], 5 raw [[swordfish]], and 1000 [[coins]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:swordfish|5*{{:Exchange:Raw swordfish|View=price}}+1000}}-{{:Exchange:Crystal key|View=price}}}}
|10.57%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Coins 250.png|Coins]][[File:Loop half of a key.png|Loop half of a key]]
|[[Uncut dragonstone]], [[loop half of a key]], and 750 [[coins]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:loop|{{:Exchange:Loop half of a key|View=price}}+750}}-{{:Exchange:Crystal key|View=price}}}}
|3.26%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Coins 250.png|Coins]][[File:Tooth half of a key.png|Tooth half of a key]]
|[[Uncut dragonstone]], [[tooth half of a key]], and 750 [[coins]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:tooth|{{:Exchange:Tooth half of a key|View=price}}+750}}-{{:Exchange:Crystal key|View=price}}}}
|3.67%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Adamant sq shield.png]]
|[[Uncut dragonstone]] and [[adamant sq shield]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:adamsq|{{:Exchange:Adamant sq shield|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|1.06%
|-
|[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Rune platelegs.png|Rune platelegs]]<br />[[File:Uncut dragonstone.png|Uncut dragonstone]][[File:Rune plateskirt.png|Rune plateskirt]]
|'''Males:''' [[Uncut dragonstone]] and [[rune platelegs]]
'''Females:''' [[Uncut dragonstone]] and [[rune plateskirt]]
|{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:runelegs|{{:Exchange:Rune platelegs|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}<br />
{{Coins|Amount={{:Exchange:Uncut dragonstone|View=price}}+{{#vardefineecho:runeskirt|{{:Exchange:Rune plateskirt|View=price}}}}-{{:Exchange:Crystal key|View=price}}}}
|0.26%
|}

Based on the above table, the average profit from opening the chest is:
Male player: {{Coins|Amount=({{GEP|Uncut dragonstone}}+2000*0.3969+({{#var:runes}})*0.0773+({{#var:loop}})*0.0356+({{#var:tooth}})*0.1192+({{#var:runebar}})*0.0351+({{#var:coal}})*0.0784+({{#var:iron}})*0.0275+({{#var:swordfish}})*0.1057+({{#var:runelegs}})*0.0046+({{#var:adamsq}})*0.0106+({{#var:rubydiam}})*0.0423-{{GEP|Crystal key}}) round 0}}.
Female player: {{Coins|Amount=({{GEP|Uncut dragonstone}}+2000*0.3969+({{#var:runes}})*0.0773+({{#var:loop}})*0.0356+({{#var:tooth}})*0.1192+({{#var:runebar}})*0.0351+({{#var:coal}})*0.0784+({{#var:iron}})*0.0275+({{#var:swordfish}})*0.1057+({{#var:runeskirt}})*0.0046+({{#var:adamsq}})*0.0106+({{#var:rubydiam}})*0.0423-{{GEP|Crystal key}}) round 0}} (prices can differ due to price differences between plateskirts and platelegs). It is not advised to try and make a profit buying keys and opening the chest because of the rare odds of some of the highest gains (such as double dragonstones).
[[nl:Crystal chest]]
[[fi:Crystal chest]]

{{Chests}}
[[Category:Interactive scenery]]
[[Category:Dragonstone]]
[[Category:Taverley]]