Image
This silica sinter is growing in the highly acidic water of Lake Rotokawa, near Taupō. The needle-like silica growths are called spicules, and the green coating is the alga Cyanidium, which is able to live in hot, acidic conditions.
Te whakamahi i tēnei tūemi
GNS Science, Extremophile Photo Collection
Reference: DSCO_3323
by Bruce Mountain
Permission of GNS Science must be obtained before any use of this image.