Thread: Info on this hone?

Picked up this hone at the local flea market for a good price. It was very oxidized(the original color is on the sides) I lapped it flat today. Yellow part seems very hard and I believe the lower is not for honing but just a backer. Did I stumble on a coticule?

A Natural Combination Coticule From What I see.good find.

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Nice Coticule!!

B
the backing looks like a piece of slate and not to be used for honing correct? I ran a scrap knife across the back part and it did not seem a material suitable for honing. The best part of finding this was it came in a package deal a Torry barbers notch, a pre 1891 Joseph Allen and sons with 3415 mark and the stone for $30.00 USD.
Mack

Well I guess I picked up my first coti so far I have been using naniwas 1k,5k,8k 12k and a Jnat Shobudani with Asano Nagura that I picked up from Tomonagura on Etsy.
Mack

Originally Posted by vmfa314

B
the backing looks like a piece of slate and not to be used for honing correct? I ran a scrap knife across the back part and it did not seem a material suitable for honing. The best part of finding this was it came in a package deal a Torry barbers notch, a pre 1891 Joseph Allen and sons with 3415 mark and the stone for $30.00 USD.
Mack

Hey Mack! Youre backing is a Belgian blue stone which in many cases might be usable for honing. It owns less garnets then the yellow side and gives a very nice polishing....

Try to create some slurry which should then work faster removing metal from youre kitchen blade

The backing is a type of stone similar to the yellow coticule top.
Coticules are found/mined between two layers of the purple side and it is called Belgian Blue .it has a different garnet content than the yellow and if I remember correctly they can or do run larger (the garnets )

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Doorsch,
so then in your opinion its worth lapping and trying out then?
Mack

Originally Posted by vmfa314

Doorsch,
so then in your opinion its worth lapping and trying out then?
Mack

As youre stone shows only one corner where it was cut away a bit, i dont see an issue lapping it flat on that side. So just try out and see how its performing....

More here to read:

http://www.coticule.be/heritage.html.../BBW-study.pdf

https://bosq.home.xs4all.nl/info%202...whetstones.pdf