Argon Crystals is a rare resource in Warframe that decays after a period of time.
Wow! 75 Argon Crystals! I wonder what you'll do with those 37 Argon Crystals. There's so many possibilities for 18 Argon Crystals. Just be careful with those 9 Argon Crystals, because before you know it, those 4 Argon Crystals start to decay and your 2 Argon Crystals will have been reduced from 1 Argon Crystal to absolutely nothing.