siliciferous

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Bearing, producing, or in partial combination with silica.

from The Century Dictionary.

• Bearing or containing silica; producing silica, or united with a portion of silica.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Producing silica; united with silica.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective yielding or bearing silica