It's Not Copper Tools

The mod is a standalone content mod that aims to expand the world without imposing strict progression or hundreds of prebuilt structures. Its new building blocks come in several families: wood-type sets that include planks, slabs, stairs, doors, trapdoors and fences, plus a large number of stone variants such as carved, brick, slab and chiseled forms for sandstone, stone, netherrack and a new ivory block. Gratings made from gold, iron and copper behave like fences, and Firebug lanterns offer another way to light a house.

Several functional blocks are included as well. An anvil modeled on a modern counterpart repairs tools and returns a little extra material, and a stonecutter that follows the Pocket Edition texture works like its modern version. Without a stonecutter, most of the new stone blocks cannot be obtained, since the recipe needs eight stone blocks and one iron ingot. A rose gold equipment set is crafted by combining a gold tool with a copper ingot. Pots are a wholly new block, and stained clay and copper tiles arrive here before they appear in later vanilla versions.

The mod replaces many vanilla blocks and items, so a world loaded with the conversion mode option may be broken if it is loaded afterwards without the mod. It is built for Minecraft Beta b1.7.3 only and requires Glass Config API and StationAPI. The code is released under the MIT License and is open source.