impactite

[ im-pak-tahyt, im-pak-tahyt ]

/ ɪmˈpæk taɪt, ˈɪm pækˌtaɪt /

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noun

a glassy or crystalline material composed of slag and meteoric materials, produced by the impact of a meteorite striking the earth.

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Origin of impactite

First recorded in 1935–40; impact + -ite¹