var·i·o·lite
(vâr′ē-ə-līt′, văr′-)n. A basic rock whose pockmarked appearance is caused by the presence of numerous white, rounded, embedded spherules.
var′i·o·lit′ic (-lĭt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
variolite
(ˈvɛərɪəˌlaɪt) n (Geological Science) any basic igneous rock containing rounded bodies (varioles) consisting of radiating crystal fibres
[C18: from variola, referring to the pockmarked appearance of the rock]
variolitic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014