Thread: the "real" melynllyn/yellow lake hone?

as far as i know there are two types of melynllyn or yellow lake hones: the black ones, often sold with a salmen label, and the purple type, sometimes with green dots. i have stones of both types:



well, so i came back from a one week hiking trip in wales this afternoon. we walked to the melynllyn (yellow lake) and i collected a few stones from the disused melynllyn hone quarry (labelled like that on the OS map). some still have saw marks on the sides. the strange thing is that these stones look completely different from my other yellow lake hones: light green (greener than on my pictures) with small black spots, quite flaky. i lapped three pieces and honed a razor that will be used tomorrow morning. the stones are rather hard, and it is very difficult to raise a slurry:





with purple and black yellow lake hones:



i was surprised to see that the purple slate with the green dots is extremely common in wales. it is mainly used as a paving stone:





at inigo jones i was told that this slate comes from the penrhyn quarry near bethesda. however in their exhibition i noticed a sample that was marked with pen yr orsedd, an now closed quarry in the northwest of wales in the nantlle valley:



last picture shows one of my new melynllyn hones (right) next to a llyn idwal (melynllyn dry, idwal with oil):



quite confusing, all this, isn't it?

regards,
hans

I have done quite a bit of rockhounding for the purposes of making hones, but not in that area. To get a piece good for hones it needs to be stable, no bad inclusions, very even grit and soft enough to shape. If you start looking at the structure of a rock formation you will see it change and a lot of bands within the formation. You do not have to stray to far for the rock to change enough that it is not exactly the same. As you move from one band to the next you get changes in colour. You can get many different appearing hones from a single quarry.

We await your tests with interest.

I've got a purplish stone a bit like yours that I accepted as a LM from descriptions posted here by people regarded as authoritative. My opinion now is that these things are pretty variable and there have probably been a range of stones sold as LMs over the years. Mine is actually OK as a finisher: I'd rate it as equivalent to an 8 to 10k synthetic.

Go to any stone slab yard and look at the slabs sold for counter tops where the large slabs have been sliced into 1.25-inch, slabs and you can leaf through and see they are sequence cut from the same stone. You will notice how much the patterns can change from one side to the other, in just 1 inch. So, it is not uncommon for stone quarries to leave stones that determined were not as pure, as they were graded coming out of the mine.

Add to that, the razor market is and always has been a very small part of the much larger tool and knife sharpening market and it makes sense they would take the stones easiest to sell to transport down the mountain.

I have several purple stones, and some from Indigo some can finish. The purple Yellow Lake and the Vosgienne look similar both with the green spots. There are several old posts under Vosgienne, and the “Brown Escher”, (that was a heated controversy on this and other fora a few years ago), from the Vosges mountains between France and Germany.

The La Lune stones another marketing brand for the French stones, I have seen labeled, in both the purple a grey coloring. These were marketed as razor stone that some claim equivalent to a 15k grit. With all-natural stones such claims may be possible but only from stone to stone, and technique becomes a factor.

As with most naturals the advent of known grit, inexpensive synthetic stones made the labor-intensive quarrying of natural stones less profitable.

None of the stones I have are labeled, marked or boxed so their origin is unknown. For me all that matters is if they can finish.

I have had the best luck finishing the stone on a high grit diamond plate 1k and using a slurry stone to smooth and create slurry, from the same stone diluting the slurry much like a coticule and using Smith’s honing fluid and water as a lubricant. Smith’s washes off with soapy water and does not affect the stone.

@euclid, rezdog: this melynllyn quarry is really, really small. you don't find one type of stone in one corner of the quarry and another type in another corner two hundred meters away. we are talking about maybe 30 x 30 meters. it is hard to imagine that all the salmen yellow lake stones come from that quarry. i collected stones from the scree slope below the quarry and stones with saw marks a hundred meters down near a collapsed building. in the area i have not seen anything that resembles a dark grey or a purple slate. of course this does not mean that there is no such thing. i spent only about half an hour in and around the quarry.

@euclid: do you think that "yellow lake" was just a salmen brand, and these hones were not mined in the melynllyn quarry? is there any proof that there were hones labelled "melynllyn" instead of "yellow lake"? is it possible that somebody thought that yellow lake stones have to be from the melynllyn quarry, simply because "melyn llyn" means "yellow lake", without having any proof?

@maladroit: the hone is a decent finisher. i raised a thin slurry with a smaller piece of green melynllyn, which takes some time. the slurry is very bright, a little bit green. it turns black quickly. i finished on water only. 12 linen, 60 leather, passed hht with some difficulties. the shave was ok, not very close but smooth enough. i usually use natural japanese hones.

regards,
hans

Originally Posted by brightred

@euclid, rezdog: this melynllyn quarry is really, really small. you don't find one type of stone in one corner of the quarry and another type in another corner two hundred meters away. we are talking about maybe 30 x 30 meters. it is hard to imagine that all the salmen yellow lake stones come from that quarry. i collected stones from the scree slope below the quarry and stones with saw marks a hundred meters down near a collapsed building. in the area i have not seen anything that resembles a dark grey or a purple slate. of course this does not mean that there is no such thing. i spent only about half an hour in and around the quarry.

@euclid: do you think that "yellow lake" was just a salmen brand, and these hones were not mined in the melynllyn quarry? is there any proof that there were hones labelled "melynllyn" instead of "yellow lake"? is it possible that somebody thought that yellow lake stones have to be from the melynllyn quarry, simply because "melyn llyn" means "yellow lake", without having any proof?

To be clear, purple slates or hones are quite common on different spots around the
World. Also the fact that the hone business often or most likely is connected to the
Roofing slate business. I never researched the Salmens story in detail Hans but Salmens surely was a Brand and iam not convinced that all the slate hones must have been quarried at that spot. So for sure there might be several spots or quarries where the stones might have their origin....

Puple Hones La Lunes and the FGBC Trademark....FGBC or La Lune was also a Trademark. Same here, different types of stones were sold during the time...also here other quaries have been picked.

If youre interested to start more research feel free to PM me....