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Heres yet another odd sized stone that I believe is Thuringian. The measurments are 5 13/16" L X 3 3/8" W X 7/16" thick. I have put it next to my "Celebrated Thuringian" hone. This stone is a little bit harder to slurry and is dark blue color, it slurries the same color as the celebrated hone in color but is a slightly harder stone( very good finisher). I suppose Thuringian hones or stones were cut in different sizes is my point, what is your opinion?
Attachment 98547
looks like a piece of slate ,but more pic's are needed to have positive I.D
I believe Thuringians can come in many different sizes and they are more likely to be found that way than esher co thuringians. Interesting stone if it cuts as fine as you say.
Just wanted to point out that a thuringian stone should look like slate...Cause that's what it is. :P Correct me if I'm wrong ofc. But I am pretty sure Escher thuringians are slate stones.
It's in your hands man. I know you've had hold of a least one or two Escher thuringians. Make the call I guess.
lol thuringian arent slate. Slate is metamorphosed shale and is composed of micaceous minerals, and could contain quartz, calcite, dolomite, feldspar, pyrite, rutile, graphite, chlorite, and other minerals. thuringians are much softer and are made of powder quartz embedded in chalk.Quote:
Originally Posted by regularjoe
I believe that thurries fit in the categorie of an oil shale?Quote:
Originally Posted by eleblu05
So thuries are made of chalk? Ok. lol. Consider me schooled. ;) It must be very dense chalk I guess? I'm gonna go play tic tac toe with one. I'll report back. lol. Time to do some more research on this I suppose. I could have sworn I've read the words "thuringian slate" right here in the hallowed pages of SRP. But my dear friend, I must say, I don't believe you can judge the softness of the stone from a picture. :w Or the composition of it's mineral content :P
I will say that the dimensions of this stone do lend itself to tile setting. Now that I've thought on it a minute. lol. But I think it's a bit thick for that.
Ah I found it. Neil Miller says thuringian is a type of slate hone stone. So stifle that laugh! lol. I got the idea on good provenance. :)
http://www.thueringer-schiefergebirg...ueringerschie/
I really think I'm right about this...lol.
i'm not saying it's a piece of slate it was just my first impression of the stone . now your link to the Thuringian Slate Mountains doesnt tell me anything about thuringian stone's just that they have a slate mountain in thuringian germany. i just dont see how thuringian could mainly be composed of slate its a harder material imo. i get my info from the internet . i can hold in my hands four different pieces of slate and one escher and none of the slate looks or feel like my escher .Quote:
Originally Posted by regularjoe
you know what kingfish you mite be on to something i cant find much info on the internet about thuringians but shale is a fossilized clay and slate is the metamorphosis of clay,shale. so if the two are the same hey regularjoe i have some slate i would love to sell to you at escher prices! the two mite derive from the same stuff but arent the same stone in the end imo. so what i have learned is shale and slate have clay in them but so does coticules they are fossilized clay too.Quote:
Originally Posted by Kingfish
Yeah I know that link doesn't really mean anything. lol.
But the real question is: If I had your four stones, one being Escher, and I took a poor picture in fading light, would you be able to discern the difference from the one photo definitively? If you care to send the stones, I'd be more than happy to help you find the answer. :hmmm:
Oh I did read that they sell Thuringian slate for both roofing tiles, and pencil leads. So there can be a big difference in hardness I guess.
this is why i love this forum we all want to know more about the same thing a think tank for razors and rocks. i found alot of info on wikipedia look up shale and look up slate they are both made of all most the same material i think its through the end process that make the stones different ,compaction,heat ect. ok just found this from wikipedia "Shales that are subject to heat and pressure of metamorphism alter into a hard, fissile, metamorphic rock known as slate. With continued increase in metamorphic grade the sequence is phyllite, then schist and finally to gneiss." ok same stuff but the end process makes it into a different preforming rock. like translucent ark and a cf . we did get off track with the true question what is a thuringian made of i think its some sort of fossilized clay with different minerals in it i dont think it has shale in it but i could be wrong the quest continues.
Ok after all that was said i found two source's one from timbertools and one from the srp wiki i'll quote the srp wiki "The stones made by the Escher & Sohn company, produced from 1709 to the early 20th century in Germany, have gained an almost legendary status among razor honers. So much so that they, like Kleenex or Coca Cola, have become the name applied to a whole genre of their type, these days simply referred to as Thuringian. Mined in the Thuringia area of central Germany, these metamorphic stones are composed of an abrasive quartz embedded in chalk" i would like to know srp sources for this info. i guess that will have to do for now .
Yeah we really wandered pretty far off topic with this thread. lol. Oh well, I stand my my original thought that the OP will have to make his best judgement decision. :) On another note, I've got a name this hone thread coming in about 3 minutes. lol.
