grey stained brown from dirt, dull, opaque, blocky and angular, flake or core?

brown and grey, dull, opaque, blocky flake

grey, dull, opaque, blocky flake. This is like block shatter but has a platform. some excavation damage

light grey, dull, slightly translucent,flake, one black fleck on cortex

end flaked, convex, brown and grey, dull, opaque, cobble tool or possible core, symmetrically converging, slight spokeshave shape

brown and grey, dull, opaque, ver worn core, heavy battering on ventral surface

grey and brown, dull, opaque, blocky debitage

unidirectional, unifacial, brown and grey, dull, opaque, large core , worn

light brown and grey, dull, ,remnant, cobble chopper, split rather than side or end-flaked. Pocked cortex

multidirectional, bifacial, brown and grey, dull, opaque, very water worn and battered core, fine grained but porphyritic, possible conglomerate section, heavy veining