CopperItems

The copper armor is in-between diamond and iron and the copper ore spawns from level 30 and below.

ARMOR:

Copper Helmet: +1 Armor Toughness +3 Armor

Copper Chestplate: +1 Armor Toughness +7 Armor

Copper Leggings: +1 Armor Toughness +6 Armor

Copper Boots: +1 Armor Toughness +3 Armor

TOOLS:

Copper Sword: 1.6 Attack Speed 8 Attack Damage

Copper Pickaxe: 1.2 Attack Speed 4 Attack Damage 

The copper pickaxe is a little bit faster than an iron pickaxe when mining.