DIATOMITE. “It is estimated that over 30 million km2 of ocean floor are covered with sedimentary deposits of diatom shells. Diatomite is a low-density and highly porous opaline silica sedimentary rock formed by the compaction of diatom frustule deposits between 50 and 80 million years ago in both marine and freshwater locations.” 30 m km2 and who knows how deep. Remarkable material from a microscopic algal biocrystalline shell. I use it regularly as a natural pesticide.
https://lnkd.in/eXTtntg
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022