Emerald Crystals
Found near the surface of terrestrial planets, this green crystal presents as loose groups of gemstones. Further down, both bigger groups and bigger gemstones can be found, with quality variation between samples being insignificant.
Emerald crystals can be consumed for emergency refueling while out in the field.
Usefulness
Refueling 2000 of your Fuel per 1 Item
Can be found at:
Terrestrial Planet: 0-50 depth