buchite

buchite

[′bü‚kīt]
(petrology)
A partially vitrified inclusion of sandstone in basalt.
References in periodicals archive ?
The name buchite is used for a glassy pyrometamorphic volcanic rock (Callegari and Pertsev, 2007).
An unusual pyroxene, melilite, and iron oxide mineral assemblage in a coal-fire buchite from Buffalo, Wyoming, Am.
565-566 of this issue of The Journal); and buchite from Eifel, Germany (see Gem Note on pp.