File:Traube cell formation.png

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Description	Traube cells. Crystals of potassium ferrocyanide are put into a solution of copper sulfate (left) and cells grow out of the solution (right).
Author or copyright owner	Heinrich Walter
Source (WP:NFCC#4)	http://onlinelibrary.wiley.com/doi/10.1002/jpln.19520560137/abstract
Date of publication	1952
Use in article (WP:NFCC#7)	Traube cell
Purpose of use in article (WP:NFCC#8)	This illustrates how the Traube cell membrane is formed.
Not replaceable with free media because (WP:NFCC#1)	n.a.
Minimal use (WP:NFCC#3)	The image is low resolution and will only be used in this article.
Respect for commercial opportunities (WP:NFCC#2)	n.a.
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Image width	329 px
Image height	182 px