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Home Dissipative Structures Preciptation-Diffusion Systems

Precipitation-Diffusion Systems

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Jerzy Maselko and his coworkers study precipitation-diffusion systems at the University of Anchorage, Alaska.Jerzy Maselko

Out-of-equilibrium precipitation experiments in super-saturated solutions lead to a rich and fascinating diversity of structures and forms. The shapes of these mineralic crystals resemble organisms like corals, algae, mushrooms, shells, worms and weeds.

A selection of these beautiful precipitations shall be presented here (pictures are a courtesy of Jerzy Maselko):

Calcium carbonate systems













Calcium silicate systems

Ca-silicate structure - vesicular structures














More Calcium silicate structures

Calcium-silicate 2

Ca-silicate tube, budding











Aluminium silicate structures

Al-silicate 1Aluminum silicate 2









Iron silicate structures

Iron silicate 1













and "caterpillar" or "scorpion-like" shapes, also shell like Fe2+-silicate structures can be seen

Iron silicate 2Iron (II+) silicate shell structure









Cu2+ Phosphates

Copper (II+) phosphate 3

Magnification of B

Copper Phosphate Magnification of B














Magnification of F

Copper Phosphate Magnification of F













Oxalate Systems

Copper (II+) oxalate 1

























more Cu2+ oxalate

Copper (II+) oxalate 2




















Coprecipitation with Glycine

Copper (II+) silicate with Glycine