There are a number of viroids, bacterioids, amoeboids, and algoid organisms. These include not only DNA based organisims but RNA, GNA, TNA, and HDGTNA ones as well. These are classified as D, R, G, T, and H, depending on their gene basis - such that there are H-bacteria and so on.
The most important of these are the algoids, because the algaes actually form colonies and symbiotic organisms (although the others, except viroids,. may for primative colonies). The algoids contain chloroplasts containing a variety chlorophylls including green, silvery-green, red, and orange.
A number of the algoids have high silica contents. An exipliary species is "glass grass". Glass grass is a silvery green HDGTNA based algoid whose high silica content makes it rigid and renders the blades sharp. Glass grass colonies grow both in marine and terrestrial evirons.
Garmp is another silica heavy salgoid species. It resembles Kelp, but with an "armored" layer.
Silacin is another silica heavy organism, being a lichen derivative.
