impactite

[im-pak-tahyt, im-pak-tahyt]
noun
  1. a glassy or crystalline material composed of slag and meteoric materials, produced by the impact of a meteorite striking the earth.

Origin of impactite

First recorded in 1935–40; impact + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018