Argon Crystal

Argon Crystals are a rare resource that drops in the Orokin Void, Invasions and in certain Assassination missions. Unlike other resources, they decay after a limited period of time. After this period the resources will disappear from the user's inventory and must be reacquired if needed.What they are used for still Don't know.

The timer points towards Midnight UTC/GMT+0 time indefinitely. This supports the description "Void based radioactive resource that decays every day it is out of the void."

Gathering Tips

 * Argon Crystals drop more commonly from containers and lockers. Thief's Wit, Master Thief, and a Kubrow with Scavenge can help in finding containers that may contain Argon Crystals.
 * Bringing a Nekros with Desecrate can improve your chances in finding Argon Crystals.

Blueprints Requiring Argon Crystals
Click to view the Blueprints requiring Argon Crystals. 

Trivia

 * Argon (symbol: Ar) is the 18th element in the periodic table. It is a noble gas whose most commonly occurring isotope is stable and does not decay as the Argon Crystal does (though it has a number of unstable isotopes that do decay).
 * Its decay may be the result of it sublimating at room temperature, as the freezing point of argon is about 83.81 kelvin (-189.34 °C).
 * This is the first resource that has the ability to degrade over time.
 * Due to a DDoS Attack on Warframe's PC Servers on April 15, 2014, Argon Crystals didn't decay until servers stabilized -although their countdown remained active-, as explained by DERebecca's post. This lasted until Update 13.1.2 was launched, as the servers had fully recovered by that time.