Name/Title
SlagEntry/Object ID
2021.1.25.24Description
Though it can look like the mineral obsidian, slag is actually the by-product of the smelting process to obtain metal from raw ore. Metals such as iron, lead, copper and others are found in nature in their impure states, called ores. When the ore is heated at high temperatures in blast furnaces, the impurities (metal oxides and silicon dioxide) separate out from the molten metal and eventually cool into glass-like chunks of slag. Slag from the old iron furnaces of southeast Ohio often got scattered in the surrounding area and can still be found today. They are sometimes confused with obsidian or even meteorites.Location
Building
Hope SchoolhouseOhio State Forest
Zaleski State Forest
