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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