Pĕt'ro-sī'lex or Pē'tro-sī'lex, n.
n. [N. Lat., from Lat. petra, rock, and silex, a pebble-stone, a flint. Called also adinole and amiansite, q. v.] (Min.) Rock stone; rock flint, or compact feldspar.
n. [N. Lat., from Lat. petra, rock, and silex, a pebble-stone, a flint. Called also adinole and amiansite, q. v.] (Min.) Rock stone; rock flint, or compact feldspar.