Furnace slag main content.

Furnace slag

Part of Hall of Meteorites.

A.8.7.1. Furnace slag hero

Exhibition Text

This is not a meteorite

Many hunks of ordinary rock or metal look like meteorites. The piece of once-melted metal, called slag, is simply leftover material from an industrial furnace. Slag often contains gas bubbles, while meteorites do not. Other common "meteowrongs" include iron-rich rocks formed on Earth, fallen pieces of manmade satellites and lava rocks polished in streams.

Collection Information


Manufactured in late 1900s

Location unknown

AMNH collection

For Educators

Topic: Earth Science

Subtopic: Meteorites

Keywords: Meteorites, Astrophysics, Rocks, Astrogeology, Slag

Audience: General