Silver

Silver ore is added by several of the major tech mods Thermal Expansion, RedPower 2, and Factorization. It can be processed into dust using one of many machines from the various mods. Processing the ore with one of these machines can double or even triple your ingot output. Like all other ores it can also be smelted in any furnace or other smelting machine. Silver Ingots are used in many crafting recipes.