As you play through Fortnite, there are a number of various rewards you can earn. For the most part, you will earn rewards during both Missions and Quests (as well as by logging on the game daily). However, the rewards you earn vary greatly, depending immensely on the Type of Quest, Mission Level, Region and Threat. There are six different type of rewards you can earn:
V-Bucks: Used to make purchases within the game.
Gold: Used to purchase items through the Event Store.
Crystals: Used For Crafting Items.
Ore: Used For Crafting Items.
BluGlo: Used During Mini Games.
Crew Members: Used to help build your Home Base.