Blizzard Entertainment updated the Diablo III website with an article about the Nephalem Cube and the Cauldron of Jordan giving fans a rundown on what each item does for players. These two items are unlocked by completing quests in New Tristram. Afterwards, both items become part of your character armor item slot window. Check out at the bottom one of the HD 1080p videos submitted to us showing both items in action.
The Nephalem Cube is another very helpful item that you'll encounter over the course of your adventure. It works just like the Cauldron of Jordan, but with an important difference. When you click the Nephalem Cube it allows you to salvage crafting materials from your unwanted weapons, armor, rings, runes, and amulets. The process destroys the original item but yields a variety of materials that grow more powerful as increasingly rare items are salvaged. Thus, common items yield common crafting materials, but more rare and valuable items will yield potent mystical substances that can be used to create correspondingly mighty items and enhancements. You'll want to keep a well-stocked hoard of crafting materials, because there's great potential in those salvaged scraps.
Cauldron of Jordan
Shortly after you begin your adventure, you'll be provided with a useful little artifact: the Cauldron of Jordan. The cauldron allows you to skip trekking back to town when the time comes to sell your loot. After you obtain the Cauldron, you can reduce virtually any item in your inventory to gold, just as if you had sold it to a vendor. Gold can do a lot of things for you in Diablo III, from purchasing artisan services to repairing your damaged gear to buying shared stash slots. There's more than one way to get value from loot though, which brings us to the other handy tool you’ll have at your disposal.