Talics are found by processing ore you receive from mining, but chances of producing them are skim. For farming talics are used to upgrade weapons and armor you can create a special PICKAXE.
To create pickaxe you will need complete 3 quests line. Quest (every 24h) can be picked from Crawler Merchant NPC on centre Sette Desert.
When you collected all 3 parts, you will need use recipe from manul Craft Tool. Pickaxe using period: 24 hours.
When you succesuflly crafting pickaxe, you can follow to the resources map and find minerals. Example: Minerals of Darkness