Carbonates
3D Pictures of minerals
Conoscopy
Diatoms
Index Measurement
Metamorphic Rocks
Meteorites
Photometry
Plutonic Rocks
Sedimentary Rocks
Spectrometer
Volcanic Rocks

On this page, a few pictures of diatoms from California filtered and suspended in water.

Diatoms in water, bright field illumination, magnification 200X

Diatoms in water,  other view. Magnification 200X.

Diatoms in water, detail . Magnification 200X.

Diatoms in water, detail. Magnification 500X.

Diatoms, small particles viewed with a wave plate inserted to show the presence of crystalline foreign material (yellow or blue).