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I thought it was lost forever.


Well-Known Member
A few years ago I bought my first Coticule, I was looking for a good whetstone for my chisels and it was relatively cheap. I didn't know anything about Coticules and I was very suprised by how fast it was. Unfortunately I lost it about 2 years ago but today my girlfriend found it. It's a small stone (only 10x4 cm) but what it lacks in size it makes up for in speed. Even without a slurry the stone turns dark-grey very fast. It also hardly produces any slurry during sharpening but it's still very fast. It's a hard stone but it feels very smooth and soft, almost velvet like. I'm glad to have it again, I thought it was lost forever.

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Click on the thumbnails for a bigger size.


Well-Known Member
I love lost and found stories. lucky you.
Maybe Bart can tell whet layer it's from.


Well-Known Member
Could be possibly "La Petite Blanche", but I'm far from sure. The color seems not right. It also appears to be a glued combo? If so it's form the pre Ardennes era. "La Petite Blanches" have a blue section in the Coticule slice, but on this one it looks more like manganese than blue. Perhaps it's from a layer I'm not familiar with, maybe even from on now closed mine.

Best regards,


Well-Known Member
It's definitely not glued. It's hard to tell from the pictures but trust me. I also bought it directly from Ardennes wich is also why I know it's not glued. As for the lines in the Coticule, I also think it's manganese. As I understand it manganese is one of the main ingredients in forming garnets. That could explain why it's so fast, it's likely to be packed with garnets.