Softening the “Crystal Scaffold” for Life’s Emergence
Figure 2
Framboids in chimneys: (a) small pyrite vent structure: reflected ore microscopy of transverse section shows a central area of empty black spaces plus (grey) fine framboidal pyrite and a fine euhedral authigenic rim surrounded by baryte, with minor pyrite; (b) Sheaf system, formed from coalescing rods of anastomosing microcrystalline pyrite. Black areas are empty spaces; central regions are framboidal pyrite with an exterior of crystalline pyrite. (Labelled pictures given by Dr. Adrian Boyce are reproduced with his kind permission; source: Boyce et al. [71, 72, 80]).
