The slice of rock mounted on the glass slide is only ~30 micrometers (~0.001 inches) thick ... That means we can identify minerals using how they appear in doubly polarized light under a microscope!

It’s approximately 50 micrometers wide and 100 micrometers long, roughly the width of a human hair.

Apatite crystal under a microscope at Paul Fitzgerald’s laboratory ... This apatite crystal has a length of ~150 micrometers. Disclaimer: AAAS and EurekAlert! are not responsible for the ...

The 1.7-gram lightweight microscope integrates confocal fluorescence and photoacoustic microscopy, allowing recordings at 0.78 hertz with 1.5-micrometer lateral resolution across a field of view ...