Iron Ore

Iron Ore  is an ore found at and below layer -64. It must be mined with a bronze pickaxe or higher in order to drop anything. It drops 1-2 hematite when mined without Luck or Silky.

Occurence
Iron ore occurs at layer 0 or below in rhyolite, andesite, diorite, granite, basalt, sandstone, and red sandstone in veins of size 9. It is most common in red sandstone.

When broken with a bronze or higher tier pickaxe, it drops 1-2 hematite, more if the tool is enhanced with Luck. If the tool is enhanced with Silky, the block drops itself.