Noice! I’ve only seen a few of those. Great score.
Coticule love... show off your rock
- Thread starter Drybonz
- Start date
What a beautiful stone and label, I've never see that label or Lion Brand before!
Great find.
Great looking stone! I chuckled when I saw the line about 'butlers and barbers'. I'm guessing they intended 'cutlers' since I don't tend to think of butlers having much need for whetstones.
Measured that BBW. 2.92
While I was about it I measured that old coti in the paddle I traded off you, because its the only one I have that doesn't have another type of stone bonded to it. That came in at 3.00, on the money.
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Nice! I'm going to get one of those for my butler.
Ah interesting, so it isn't necessarily the case that BBW is higher then. As you say - it's a bit difficult to get a lot of data reference for this because they're so often stuck together.
The stone I use in the vid on the previous page is the one that's 3.22 (combi), it was the big 10" stone off Ausbay. And is quite extraordinarily fast, swarfs up almost like an SG500 while finishing as fine as any I've had.
Hmmm. My fastest coti is my LPB combo (I had another even faster from the same vein, but I sold it). I cant find in my notes if I ever measured it, so I might tomorrow.
That'd be interesting to know.
The theory here is sound I think... because spessartine garnet is so heavy in comparison to most other common minerals the SG of coticules and BBW should have a fairly close correlation with how quick they are. (Obviously hardness will come into play too).
Possibly, yes. I've also read about the correlation between red colour, or blush, and the speed. Which would make sense since garnets are red.
I guess it depends on the % of garnet to mud ratio. I always assumed the garnets would make up about 1% of the rock, so it would have little effect on the weight.
So, this one has been posted before, but I have it out of its paddle tonight, so here it is again.
It is clearly very old, but the thing that sets it apart is the hole. The hole makes me sure it predates the (antique) paddle, because why would a hone puttied into a paddle need a hole?
Does anyone have any info or other similar examples? It's not backed by any other stone.
The romantic part of me wants to imagine it hanging off some Roman or Gaulish soldiers belt 2000 years ago, but who knows. Some Belgian might have had it nailed to the floor to stop the door banging the wall.
It is clearly very old, but the thing that sets it apart is the hole. The hole makes me sure it predates the (antique) paddle, because why would a hone puttied into a paddle need a hole?
Does anyone have any info or other similar examples? It's not backed by any other stone.
The romantic part of me wants to imagine it hanging off some Roman or Gaulish soldiers belt 2000 years ago, but who knows. Some Belgian might have had it nailed to the floor to stop the door banging the wall.
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Yeah apparently it can be much higher, so could have a very large impact. There's actually an interesting little bit in G&H about this I notice:
Thats both interesting and confusing.
So on a slate hone, what percentage is quartz (or whatever the cutting component happens to be)?
This made me laugh.
In fact I think in any matter: 'interesting' and 'confusing' also probably have a fairly strong +ve correlation.
Good q... google tells me 20-40%. Which is surprisingly high again I think. The reason that slate is quite slow is because it's not very friable and the silica gets kinda compressed and flattened during lithification and metamorphic change.
I've got a piece of BBW that also came in at 2.92. I measured it for kicks and giggles months ago
Slurry stone split into 2 while moving to germany. Luckily everything else came in safely. Figured I can glue this back together no problem, but here is a cool cross section of a nice yellow coti.
Well all this chat clearly brought me some good fortune...
I thought I had opened all the boxes of exciting new things, but just found another. And inside was a hefty old chunk of coticule
.
This has a very gradual transition to a thin layer of BBW on the bottom. Which I seem to remember being quite distinctive of a particular layer(?). Can any experts enlighten me...
I thought I had opened all the boxes of exciting new things, but just found another. And inside was a hefty old chunk of coticule
.This has a very gradual transition to a thin layer of BBW on the bottom. Which I seem to remember being quite distinctive of a particular layer(?). Can any experts enlighten me...
Was an interesting one that, how's it like to hone on? I obviously never used it on a razor myself.
I have since seen a couple of other stones with a similar hole, and they were also smaller, narrower hones. I assume it must have been for a bit of cord or leather, to have the stone attached to you in some way with easy access for use.
Makes me wonder... when were pockets invented?
Well all this chat clearly brought me some good fortune...
I thought I had opened all the boxes of exciting new things, but just found another. And inside was a hefty old chunk of coticule
This has a very gradual transition to a thin layer of BBW on the bottom. Which I seem to remember being quite distinctive of a particular layer(?). Can any experts enlighten me...
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La Grise perhaps...? (I shall update with more pics once I've cleaned it up).
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