Bronze Dungeon
Holystone will lead you to the bronze dungeon. These can be seen on the side of an island, or a lower section of the surface. The boss of the bronze dungeon is a Slider.
Inside, the dungeon is identified by a large square room of 
Carved Stone and an occasional 
Sentry Stone. While these blocks cannot be mined inside the dungeon (as any dungeon), killing a Sentry will drop either a Sentry Stone, or Carved Stone. The boss will drop a decent amount of Carved Stone and give you a 
Bronze Key.
How to defeat the Slider
The Slider is first activated when hit using any pickaxe. It is advised that you bring several Zanite or Iron Pickaxes, because the Slider will take a toll on the durability, and Diamond or Gravitite Pickaxes are more valuable. It is also advised that your pickaxe(s) have an Efficiency enchantment or that you have a Strength potion, as those both will deal more damage to the Slider.
The Slider will attack you by sliding towards you, thus knocking you back and dealing damage. A good strategy is to always stay diagonal from the Slider, because it can only move in the four cardinal directions, as well as up and down. It is also advised that you bring a Golden Feather or Gravitite Armor, because when the Slider comes in contact with you, you will also be knocked upwards.
Loot
Once defeated, the Slider gives you a Bronze Key which is used to open the, now revealed, chest under the Slider's platform. Available loot:
Valkyrie Lance (Weapon that has an 8 block radius)
Gold Gummie Swet (Instantly heals 20 hearts)
Blue Gummie Swet (Instantly heals 10 hearts)
Phoenix Bow (Shoots fire arrows)
Lightning Knife (Knife that can be thrown and strikes lightning on impact)
Hammer of Notch (Has the ability to shoot a projectile with a large hitbox)
Agility Cape (Allows you to walk up one block high walls without jumping)
Flaming Sword (Sets the opponent on fire upon landing a hit)
