Snail Shell

I found this snail shell today while looking for my photograph, and coincidentally it fits the tiny Tuesday "mineral" challenge.
I enhanced the image with PS Poster Edges to make it look more like a drawing.
The original photo is in the extra.

"Snail shell is a mineral ingredient that contains about 98% of calcium carbonate (Cobbinah et al 2008). It is, therefore, a biological source of calcium that can be used in animal feeding."


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