Everyone's probably pretty tired of looking at them. Sure, they're used in the geological survey, but...
Suggestion one: moar sprites kthxbye
Suggestion two: "Thanks to the ongoing research of Chef Bis- I mean, Chief Geo Knight Wegner, other fascinating uses have finally been found for these strange and powerful minerals! After upping reasearch speed by commandeering every piece of these two minerals mined thus far, and sending out hordes upon hordes of Geo Knight squads to mine until Valestone and Moonstone are less common than they used to be, Moonstone has been identified as actually being crystalized Energy. In addition to converting Moonstone to loose CE, perfect for opening energy gates now and then, Wegner can now convert the scientific "life particles or whatever" found in Valestone into Sparks of Life that knights can use."
Alternative craftables: In case the first things are just "UNACCEPTABLE, NOOOOOOOOOOOO," here's some backups.
-Mineral Duplication Sauce: Grow your own crystals! Now works on valuable ones, too!
-Parachutes: Don't want to play that compound level? Don't worry, crystal-parachute's got your back this one time. Somehow.
-Accessories made of crystals: Self explainitory, who doesn't want a glowing green mustache made of rocks?
Questions? Concerns? Comments?
-Mineral Duplication Sauce: Grow your own crystals! Now works on valuable ones, too!
[Old player comes back after years]
Sprites? Whuh? Minerals needed?
[Looks at inventory]
[41379 Crimsonite, 61525 Luminite, 51723 Dark Matter, 63432 Valestone, 56463 Moonstone]
Huh.
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How does the parachute work?
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The accessories sound awesome. Do they glow?
What will the Sprites be like, if more were added? We already have a Defensive, an Offensive, and a hybrid.
Nooooooooo to Energy and SoL's.