Two visual science fiction stories.
Lichen, rust, and corrosion.
Rust is slow fire and lichen, the symbiotic fusion of fungi and photosynthetic bacteria.
Lichen colonies have been found to be 5000 year old; slowly growing their way through an eon, and somehow, layered on skin, rust has turned golden.
The metal framework appropriated from Rem Koolhaus and Frank Gehry, (I wandered through dusk in Seattle for these architectural fragments) along with crystalline basalt.