Salmen Yellow Lake vintage
I have a question in regards to the comment about Eschers having quartz. Is that to say that only Eschers would have quartz? It was my understanding that Escher & Co sourced slate from different quarries in Germany. Being that every country has slate formations it's hard to believe Escher would be the only slate that would have quartz. Of course Escher picked the best of the best which is a given.
Not putting words in your mouth. I am just interested to learn.
Salmen Yellow Lake vintage
I think that is a marketing slogan "quartzite embedded in chalk"
Every thing I have read says that Escher = slate. Do you have a citation for this? Any info would be great.
Salmen Yellow Lake vintage
Yes I have many slate stones including blue and y/g Escher and several Thury's, I have other slate stones that are finer and leave a better edge others that are worse.....
Your right Eschers are great stones but only because they were hand picked, it has been proven that they sourced from several locations in Germany. Not just one hole in the ground, I am convinced that with the advances in mining operations that if it were profitable today many other hones could be sourced that would far exceed Escher. And in some ways it is happening... A well known UK fellow Is reclaiming used slate from ??? (could be old roof tiles for all we know). He has told me personally that he buys large quantities of slate, soaks them in water to check for iron oxide, rejects those that do.. then slabs them out and rejects the bad stuff. Basically he is doing the same as Escher did.. You can look at his estimates, the same stones are all over the place with grit estimates. (in his opinion). It's still just slate....... He is Escher Jr. LoL only because no one else is doing it...
FYI, timber tools can't change geology. It's still just slate I say. But I am no geologist,
Here is a great article on the subject, http://bosq.home.xs4all.nl/info%2020...ing_part_2.pdf