Micrometeorite, SEM
Thiobacillus ferrooxidans, SEM
Chromatium sp. purple sulphur bacterium, SEM
Proteus vulgaris, Gram-negative, SEM
Sulphur from a volcanic steam vent, SEM
Sulphur crystal, SEM
Fractured glass edge and surface, SEM
Methylococcus capsulatus, SEM
Shewanella putrefaciens, SEM
Crustose lichen Xanthomendoza fallax, SEM
Desulfovibrio vulgaris, SEM
Barred olivine chondrule
Aluminium (metal) microspheres, SEM
Coral sand sample, SEM
Asbestos fibres, SEM
Pallasite meteorite fragment
Pseudomonas and Pythium, SEM
Pyrite and quartz, crystalline
Iron pyrite crystal, SEM
Pink beryl crystal, SEM
Asbestos fiberschrysotile type, SEM
Pennate marine diatom (Cymbella sp.), SEM
Diatom frustule (Cymbella sp.), SEM
pennate diatom colony (Asterionella sp.), SEM
pH measurement of oxide solutions
Medieval "greek fire" warship
Siege with Trebuchet and Greek Fire
Wold Cottage meteorite
Lavoisier's chemical elements list, 1789
Sulfur trioxide pollutant molecule
Vardenafil erectile dysfunction drug, molecular model
Serratia marcescens, Gram-negative prokaryote, SEM
Quartz crystals, SEM
Quartz crystal, SEM
Global dust and aerosol, computer model
Apothecia of Xanthoria parietina liche
Chlorobium tepidum, SEM
Sapphire, SEM
Golden alga (Mallomonas sp.), SEM
Golden colonial alga (Synura sp.), SEM
Chalk dust, SEM
Expanded vermiculite pellet, SEM
Period 3 elements
Copper reacting with sulphur
Clopidogrel antiplatelet agent molecule
Celestine crystals in sulphur groundmass
Pseudomonas fluorescens, Gram-negative, SEM
Volcanic ash, SEM
Chicken eggshell surface, SEM
Chicken eggshell inner membrane, SEM
Chicken eggshell cross section, SEM
Diving bell spider (Argyroneta aquatica), SEM
Diving bell spider setae, SEM
Cichlid fish gills, SEM
Goby fish gills (Awaous guamensis), SEM