# Diatoms

- Members of the [[Heterokonta]] [[phylum]] of the [[SAR Supergroup]]
- Photosynthetic algae, with silica-rich shells
  - When diatomaceous earth is exposed, silica can be harvested from the
  remains of diatoms

[//begin]: # "Autogenerated link references for markdown compatibility"
[Heterokonta]: heterokonta "Heterokonta"
[SAR Supergroup]: sar-supergroup "SAR Supergroup"
[//end]: # "Autogenerated link references"