Modoc main content.

Modoc (AMNH 604)

Part of Hall of Meteorites.

A.8.1. Modoc. Wrapped in black glass hero

Exhibition Text

Wrapped in black glass

Rocks floating through the vacuum of space are chilled to well below freezing. When a meteorite passes through Earth's atmosphere, its inside stays cold even as its surface melts away. Before it hits the ground, the molten surface solidifies into a thin glassy coating, called fusion crust. Crystals of magnetite—an iron-oxide mineral—color the fusion crust black. The broken surface of Modoc shows contrast between its lighter-colored interior and its dark fusion crust.

Collection Information


Fell September 2, 1905

Scott County, Kansas, USA


AMNH 604

For Educators

Topic: Earth Science

Subtopic: Meteorites

Keywords: Meteorites, Astrophysics, Atmosphere, Astrogeology, Meteors

Audience: General