Containing one of the largest collections of photomicrographs on the Web, Molecular Expressions showcases a unique series of images from the microscopic realm. Browse the Photo Gallery for otherworldly magnifications, including animals etched onto computer chips, cocktails, neurotransmitters, and feathers. A new addition to the gallery, The Dinosaur Bone Collection, comprises stunning photomicrographs of thinly sectioned (about 30-80 microns) dinosaur bones under polarized light.

Dolomite and Calcite Crystallites from The Dinosaur Bone Collection (click on image to see more examples)

Crystals Within Haversian Canals from The Dinosaur Bone Collection © 1995 - 1999 by Michael W. Davidson (click on image to see more examples)

"The matrix of Haversian canals in these photomicrographs arise from bone channels (once round) that are crushed flat by the huge pressures of being underground for such a long time. Calcite and dolomite minerals are often found in the voids between Haversian canals where they form beautiful displays of pattern and color. Rings of collophane surrounding the Haversian canals are often filled with light-impervious metallic oxides."

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Previously Featured Art