Thread: final polishing hone

They seem to be comparable, no real advanatge one way or the other as somethimes happens with Belgians. I may also have a small supply of the vintage stones available as well that were still in storage at the quarry.


Tony

A German member of Nassrasur compared the vintage Thuringers and the Manufactum Thuringers and found their composition to be identical. Looking at the pictures I do not think they have garnets in them so I wonder whether the vintage Thuringers I refer to are comparable to the ones Tony refers to.

I do have microscopic pictures of the slurry and pictures of the macroscopic aspect of both but cannot attach them to this message. Until now I have never been able to add pictures on SRP. The attachment management feature told me the pictures have too many kB in spite of the fact they seem small picture.

Anyway, if anyone is interested in the pics I will PM them.

Thanks Tony and Kees.

Actually I think the high price commanded was probably influenced by the nice old box the stone came in.

http://cgi.ebay.com/ws/eBayISAPI.dll...3057&rd=1&rd=1

Tony, what will your sizes be again? Are you going to sell some narrower ones?

Kees,
Under a microscope at 30 to 60x both do appear to have garnets as the cutting agent. I will confirm with the quarry tomorrow.

The first shipment will be 2x8 and 3x10 stones retailing somwhere around $60 for the smaller, $95 for the larger depending of fees when they land. Yes, Manufactum is Germany is cheaper but shipping on a single stone is the same or higher than the stone price alone. If you are in Europe buying directly from a source they will be advantageous and I can furnish info on how to buy larger stones for customers there. I am their USA distributor so shipping back to Europe again will not be the best idea <g>.

Tony

Tony,

How do you recognize garnets under an ordinary microscope? I have had look with my mike but at 100x magnification all my hones, whether Arkansas, coticule or Thuringer, look pretty similar. They all have little shiny things in them that look to me very similar.

Kees,
The Thuringer (Eschers, Dorescher, etc..) and the Belgians should show the tiny reddish flecks under reasonable magnification. On Belgians they look rather random in some cases but on the German stones they seem to be very numerous.

Tony

I'll have to have a look again!

Originally Posted by Tony Miller

Kees,
Under a microscope at 30 to 60x both do appear to have garnets as the cutting agent. I will confirm with the quarry tomorrow.

Tony

Tony,

You're right. I took a look at the slurries of both stones and at 400x magnification I saw the garnets. At 40x I could not see them however.

Kees,
Yep,they are there. It takes the right lighting and magnification but the garnets are in there.


I will make a post about the availability of these in USA in the vendors area later tonight.

Tony