siliciferous
sil·i·cif·er·ous
(sĭl′ĭ-sĭf′ər-əs)adj.
Bearing, producing, or in partial combination with silica.
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.
siliciferous
(ˌsɪlɪˈsɪfərəs)adj
(Elements & Compounds) containing or yielding silicon or silica
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014