"Light Speed" Crystal Growing

How fast can crystals grow ? Donīt they need millions of years ?
For many people itīs almost unbelievable that you can grow nice sized crystals within a few days or even just hours.
Now would you believe that one can grow over one inch sized crystals within a few seconds ?
Crystals growing so fast that you literaly can see how they grow ?

Impossible ?

Not for the modern crystal alchemist. Watch how it is done !

the "mysterious" liquid

rapidly grown crystals

crystals almost filling
the vial completely

I have prepared some live videoclips of crystals growing with "light speed" it might look like but its no time lapse but actual speed. To reduce download time the videoclips have been encoded in MPEG-4, please excuse the "lousy" quality.

Videoclip 1 shows a crystallisation in 3 steps.

Videoclip 2 a realy rapidly growing crystal.

Videoclip 3 over a complete minute of crystallisation.

To run the videoclips just click on VIDEOCLIP on your right

VIDEOCLIP 1
136 KB, 47 s

VIDEOCLIP 2
40 KB, 15 s

VIDEOCLIP 3
121 KB, 63 s

To give you an idea of the dimensions the vial has a diameter of 38 mm ( 1 1/2 inches ) and is filled about 80 mm high ( app. 3 inches ) with the liquid.

Okay whatīs the trick ?

The trick is using a so called supercooled melt of sodium thiosulfate pentahydrate. This salt melts about 48.5 °C (119.3 °F) and forms a colorless waterlike liquid. When you take care that all solid material has melted and keep your container tightly closed when cooling down, so that no dust can get in, and if you do not shake the container arround, you will be lucky and you still have a liquid when your molten thiosulfate has cooled down to room temperature.