Volcanic ash particle

Vinyl record groove

velcro fabric

underside of a green leaf epidermis

Tongue papillae surface

Spider silk strand

spherical virus particles attached to a host cell membrane surface

single snowflake ice crystal

Shark skin denticles

Rust formation on iron

Pencil graphite tip

Mosquito proboscis tip

Moon dust particle

Meteorite crystal structure

Integrated circuit microchip die

Gecko foot setae

Deep sea diatom shell

Damaged human hair shaft

butterfly wing scales

Coral polyp skeleton

biconcave disc shapes stacked like coins in rouleaux formation

Bone trabecular structure