Coticule grit?

This has probably been asked before, if so please bear with me.

What is the grit on a belgian Coticule like these:

NEW! Belgian razor hones ?

How do they finish an edge, compared to the Naniwa 12 K?

Thx

Coticules are basically 8000 grit, The Belgian Blue stone is around 4k. These stones are unique in the sense that when a slurry is raised, it releases more Garnets, increasing the stones ability to cut. Check this link. It has a list of hones and their grits.
Hones - comparison table - Straight Razor Place Wiki

The table gives you more info on Coticules, 10k, this is possible and subjective. It goes on to say, All Coticules are different. If you check Ardennes Coticule, (That's where they are mined) it'll tell you, 8k and 4k for the blue....in the very basic sense....I would trust the info at Ardennes.

Pink Coti's tend to cut faster, hence a lower grit, while your gold, yellow and green tend to be harder and slower, higher grit...

Coticules are awesome hones, great sharpeners if you are patient, and excellent finishes regardless. It is accepted they are around 8-10K, sometimes more.

Go to Welcome to Coticule.be - home of the famous Belgian Coticule Whetstone, where you can learn lots about them.

They can act at the 1K level if a heavy slurry is used, and gradually diluted till just water to form an entire honing progression - the dilucot method.

Personally if I was to get another, order direct from Ardennes quarry.

Regards

EDIT - Zib, you beat me to it!

Just a heads up

That page in the Wiki has some inaccuracies and missing info there so it will be "Under Re-construction" as a few of us bring it into line...