Figure F12. Frondlike growths of hematite included within coarse-grained quartz (with trails of fluid inclusions) in jasperoid Sample 193-1189B-11R-1 (Piece 3, 14–16 cm; CSIRO 142714). The frond structure extends across quartz crystals and apparently predates growth of the latter. Width of view = 1.3 mm. A. Ordinary light. B. Crossed polarizers.

Figure F12. Frondlike growths of hematite included within coarse-grained quartz (with trails of fluid inclusions) in jasperoid Sample 193-1189B-11R-1 (Piece 3, 14–16 cm; CSIRO 142714). The frond structure extends across quartz crystals and apparently predates growth of the latter. Width of view = 1.3 mm. A. Ordinary light. B. Crossed polarizers.