Throughout Cube World, as you are exploring you will find caves. In these caves there may be Ores and Gems.
Harvesting these will help you make better Armour, Weapons and Jewelry or just improve existing gear...
Here is a list of what you could find, what you get from those resources and how to utilize them.
Resource
Gives
Used For
Creating Armour for Warriors
Creating Weapons for Warriors & Rogues (parts for Bows too)
Customizing Weapons
Creating Weapons (Bracelets) for Spirit Mages
Creating Silver Rings for all Classes
Creating Silver Amulets for all Classes
Creating Weapons (Bracelets) for Spirit Mages
Creating Gold Rings for all Classes
Creating Gold Amulets for all Classes
Ingredient for making higher level Rings
Ingredient for making higher level Amulets
Needed material to create Green quality (magic) items
Ingredient for making higher level Rings
Ingredient for making higher level Amulets
Needed material to create Blue quality (rare) items
Ingredient for making higher level Rings
Ingredient for making higher level Amulets
Needed material to create Purple quality (epic) items
Ingredient for making higher level Rings
Ingredient for making higher level Amulets
Needed material to create Yellow quality (legendary) items
IRON ORE DEPOSIT
IRON ORE CUBE
SILVER ORE DEPOSIT
SILVER ORE CUBE
GOLD ORE DEPOSIT
GOLD ORE CUBE
EMERALD DEPOSIT
EMERALD NUGGET
SAPPHIRE DEPOSIT
SAPPHIRE NUGGET
RUBY DEPOSIT
RUBY NUGGET
DIAMOND DEPOSIT
DIAMOND NUGGET