Shown here is the beginning of a spicular growth in a sample from Champagne Pool. The filamentous micro-organisms prefer to grow on the top of the spicule. This becomes covered by a layer of amorphous silica. More micro-organisms grow on top, and the alternating process of inorganic–organic growth keeps repeating.
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GNS Science, Extremophile photo collection
Scanning Electron Micrograph (SEM) by Kim Handley
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