Zinc

GregTech
Small Zinc Ore can be found at a height of 30 to 60 in the Nether Overworld and The End with a relative frequency of 12. Zinc can be obtained by breaking down the alloys, , and , as well as a byproduct in the ore processing of , , , , and.

Flaxbeard's Steam Power
Zinc Ore can be found in the overworld at the same levels as Iron. It can be used to create a Storage Block, Plate, and Nugget. Storage Blocks and Nuggets are created the same way as any other. Plates must be created by putting Zinc Ingots into a heated Crucible, at which point the molten metal should be poured into a Mold with a Plate Mold. Six nuggets are used in the creation of a Zinc Plate, which makes it unable to be used in other mod's recipes requiring their own Zinc Plates.