Stone Stone Texture, form and colour; rock is the foundation of everything here on Earth. To the human time scale, apparently enduring...and yet geologically fleeting, subject to fascinating processes of erosion and slow decay. Hawkesbury Sandstone archipelago Swirling rocks, Crowdy Bay National Park Boulder splashed by waves and raindrops Eroded cliff, dawn Weathering pattern II Claystone, algae and lichens Ephemeral waterfall, South Coast Sandstone, Sydney coast Pagoda split Sandstone and bird tracks Crumpled rock, West Coast Ironstone-capped pedestal, Ben Bullen State Forest Ironstone #II Hawkesbury Sandstone Canyon, Wollangambe River headwaters Three lichened boulders, West Coast Grotto and reflected light Lichens on quartzite, lower Kowmung River Rock pool, Botany Bay National Park Polished cobbles, Spero Bay Sandstone ochres Lichen mosaic III Weathering pattern I Lichens on river rock Sandstone Cave, Colo River Patterned sandstone Remnant stones and lichens Ironstone forms, pre-dawn twilight Sandstone strata Rock buttresses and algae Wave-gathered cobbles and raindrops Waterworn boulders Quartz pebbles Scoured river boulder Wave-rounded boulders, South Coast Shoreline cobbles, South Coast, Tasmania Pink edges, Mimosa Rocks National Park Rain pool and ironstone, Blue Mountains Pink rock, Mimosa Rocks National Park Rock patterns, Botany Bay National Park Hawkesbury Sandstone detail Lichens and schist, West Coast Ironstone shapes Lichens Lichens on sandstone Afterglow on pagoda Sandstone formation, Colo River Basalt and fig root Lilac sandstone, Botany Bay National Park Orange algae Weathering pattern III Weathering pattern IV Ironstone #I Sandstone prisms and lichens Lichen mosaic II Shale and leaves Orange swirls Sandstone delicates 1 2 ... 8 ►