Diatomaceous earth quarry
Diatom Biddulphia. SEM
Aulosphaera radiolarian, SEM
Diatomaceous earth, silica frustules, SEM
Radiolarian test, SEM
Radiolarian tests, SEM
Basalt, light micrograph
Diatoms, light micrograph
Diatoms and radiolaria, SEM
Radiolarian skeleton, artwork
Diatom, SEM
Asteromphalus sp. diatom, SEM
Diatoms, SEM
Gyrosigma sp. diatom, light micrograph
Triceratium antediluvianum diatom, light micrograph
Arachnoidiscus sp. diatom, light micrograph
Diatom alga, SEM
Eupodiscus diatom, SEM
Actinoptychus diatom, SEM
Paralia diatom, SEM
Aulacoseira diatom, SEM
Triceratium diatom, SEM
Odontella diatom, SEM
Diatom frustule, light micrograph
Diatom, light micrograph
Diatom (Triceratium). SEM
Gomphonema diatoms, light micrograph
Biddulphia aurita, SEM
Triceratium dubium, SEM
Chaetoceros sp., SEM
Radiolaria skeleton, light micrograph
Radiolarian, SEM
Xiphostylus sp. radiolarian, SEM
Radiolarian between diatoms, SEM
Theocapsa sp. radiolarian, SEM
Zygospyris sp. Radiolarian, SEM
Radiolarian on a matchstick, macrophotograph
Radiolarian, light micrograph
Radiolaria, light micrograph
Fresh water pennate diatoms, light micrograph
Marine diatom (Triceratium formosum), SEM
Phaeodactylum tricornutum, SEM
Euplotes protozoan and diatoms, SEM
Fossil diatom, light micrograph
Diatom on cyanobacteria, light micrograph
Epithemia diatoms, light micrograph
Melosira diatoms, light micrograph
Gyrosigma diatom, light micrograph
Diatoms and red algae, light micrograph
Diatoma diatoms, light micrograph
Diatoms and Spirogyra algae, micrograph
Amoeba, diatoms and red algae, micrograph
Diatom and green algae, micrograph
Cymbella diatom, light micrograph
Cymbella diatoms, light micrograph
Diatoms, polarised light micrograph
Synedra diatoms, light micrograph
Cyanobacteria and diatom, micrograph
Tabellaria diatoms, light micrograph
Gomphonema diatoms, polarised light micrograph
Tabellaria diatoms, polarised light micrograph