Thread: Escher missing link.

Laager,
Thanks. Just like the coticules the stone color differences are found together in the same deposit of rock. Big Spender simply took it one step further. If you and I have both seen quarried stones of 2 color types together they must indeed be found in the same quarry as well at least in this case.

Tony

Very simple. If you go to any quarry I don't care what kind of rock or mineral your after you will find a very small amount of very high quality material and alot of poorer quality material and a huge amount of junk. Its the same all over. Whether a particular variant comes from the same quarry only the quarry workers will know. Otherwise, you would have to see the quarry yourself assuming most of the material hadn't been removed but there is always a small amount on the dumps so you should be able to find everything representitive of what came out over the years. In the U.S many old quarries have filled with water and the dumps have been removed and the land has been developed.

You're still missing the point.

I give up.

No I understand exactly what your saying. Your talking about the different variants coming from the same quarry. As I said unless you go to the quarry or the dumps and inspect what has come out of the quarry or speak to the workers how will you know that the variants you are talking about came from the same quarry?

I give up!

Sigh.

Originally Posted by thebigspendur

No I understand exactly what your [sic] saying.

No, you don't. You're got no comprehension of this thread's purpose at all.

Your [sic] talking about the different variants coming from the same quarry. As I said unless you go to the quarry or the dumps and inspect what has come out of the quarry or speak to the workers how will you know that the variants you are talking about came from the same quarry?

You still don't get it.

I have shown a piece of rock. A single piece of rock. It contains two variants in the one piece. Even a child could logically deduce that piece of rock came from one place and it supports my assertion that both yellow/green and grey may be found in the same deposit; or do you now think I glued two stones together?

If you want to generalise about assessing whether unicoloured stones in isolation come from the exact same geological spot then I suggest you carefully reread this thread to see that isn't the point of the thread.

It's really quite simple.

Your conclusions about the morphology of the rock in question are over simplistic. I'll give you a great example. A variant of Quartz called ametryine which is a mixture of amethyst and Citrine also variants of quartz. Commonly found in Brazil. Just because you find a chunk of the stuff in one mine does not for a moment mean you will find pure amethyst and or pure citrine in the same mine. You can't conclude just because your rock has colors of both in the one piece that you will find pure examples of each at the same location or quarry. Maybe you will and maybe you won't. Thats all I've been trying to explain to you. Its probably more common to not find it then to find it. marble is another example. Just because you find pink marble with red swirls doesn't mean you will find pure pink marble at the same quarry.

i have a barbers delight escher. i would say that its working surface is fairly light yellow/green. other people have barbers delight eschers which are labeled yellow/green so it is likely that my assesment is correct. regardless, both it and its matching slurry stone (which seem to be cut from the very same piece of stone, for information sake, not that it matters) fades slightly darker moving towards the label side, and then transitions abruptly to a much darker colour. and while i dont see it as blue (it still seems greenish to me) it is distinctly, unmistakeably different.

so, i dont know where this dark side would fit into the escher colour coding scheme, but i just thought i'd share.

Originally Posted by ezpz

so, i dont know where this dark side would fit into the escher colour coding scheme, but i just thought i'd share.

I've seen and had Eschers that were of two colors. The colors listed in an old catalog price list were Dark Blue, Blue Green, Light Green and Yellow Green. I've had examples of all of them and to the untrained eye they all see gray. Nuances differentiate them once you've had them side by side to compare. The dark blue is the easiest to recognize while the others can be tricky unless they are end labeled from the factory. To my eye anyway. BTW, when you referred to 'dark side' I smiled, made me think that must have been where I went when I got into this hone thing, over to the dark side.