ash rock

ash rock

[′ash ‚räk]
(geology)
The material of arenaceous texture produced by volcanic explosions.
References in periodicals archive ?
BLACK IN ACTION DJ Pete Snodden gets crowd going at the Ulster Hall BELFAST Crowd goes wild at Ulster Hall gig last night DUBLIN Punters raise a jar to Arthur at Guinness store GALWAY A Sea of the Black Stuff in centre of the city HOT STUFF Ash rock on MILKING IT Kelis struts her stuff on Ulster Hall stage