diatomaceous earth or diatomite, vintage engraving

acinet algae ancient anthophyza antique art artwork astasia black botrytis chilodon codosega cucullus dendromosas diatomaceous diatomite diatoms dinobryon drawing earth engraved engraving equisuum etching ferum fossil gemmiparous haematodes illustration kieselgur longicauda old parasite phacus picture podophrya polymorphus remain rhipidodendron rock sedimentary sertularia splendidum stentor vector vegetan vintage virgaria white