Yeah I have been reading from 3 or 4 threads about certain clays. I was reluctant for a while to make a thread because I didnt want to create another thread thats so much a like others. Ive been reading so much lately and it gets to that point where I just have to leave the computer and get to trying something. As for the Maganese Dioxide, I did see a dark brown/ metalic brown depending on the firing atmosphere recipe, but then I saw how nasty that Mag dioxide was and someone even said to where gloves when handling the clay. I dont want to have to have that worry, the dust and fuming from firing I understand but not when Im forming.
I hate to bring up the natural clay thing too. Its probably one of the most annoying questions to bring up, at least thats how I think the pros see it. I jumped at the idea way back only to be met with failure. I added 20% epk to my slurry and it helped a bit but nothing special. I only thought to use it again because I still have a bucket or two hidden somewhere underneath my work station and it has the mica already accounted for. Old habits I guess. I was experimenting the other day by adding back in some of the small bits of quartz and/or granite that I had once taken out of my natural clay. It did improve the workability a small amount so I shoved it into a plaster bowl shape, let it dry, and its on its way to cone 6 this evening. So we shall see. Ill move my updates into your thread since we are all attempting the same. Maybe the mods could sticky that thread since there is already a wealth of info to be had in it.
:edit: I see youre from north florida. It makes me think about when I was last in Jacksonville visiting some family. There was a small exhibit at once of the Museums there where a old local potter dug up clay from around Coral Springs. Which I was actually staying near Coral Springs. I thought about playing in the mud and bringing home a bucket of what ever I found haha. Maybe next time.
"yes, those guys were figure'n while their instructor was busy grinding excess glaze off 3 shelves with 4 6inch circles of glaze an inch high."
What I think is that you tried to assert yourself to these little scoundrels and they told you to bug off because you werent their instructor. Or there is some level of bitterness towards the act that you decided to go have a voice somewhere because you couldnt say anything there.
Oldlady do you have grey hair? not salt and pepper gray but like bentonite grey...you know the REAL grey not the other greys or the grey grey Grays... Your first post as many brought out was clearly an arrogant boast of ones "knowledge" and was clearly bashing to those more than likely just excited to find something for themselves. I always enjoyed when in school my science teachers starting off the class by saying "more than likely everything you learn this year could be proved wrong in the next ten years." Its true because what we know as definite in this world is only governed by our limitations. I think about how the grandeur of cone 10 glazes has really been taken back and over the years many have transitioned themselves to Cone 6. What was once thought to be unachievable at one level can now be succesfully achieved. As for the title of this post is plain ignorance. To state that "red" in order to be a REAL RED it has to be that most awful Santa Red. See what I did there? I stated my opinion that I felt the santas red was awful and not a definite red in my eye. Each color has its own spectrum of colors. Ever see the YELLOW freight trucks? there logo is a tint of Orange, but hey theyre calling it Yellow. You should email them.
I understand your insistance on safety. It is true that as potters there is much to think about when it comes safety ESPECIALLY if we are providing a product where food is involved. There are so many variables to consider when working with clay and education is necessary. I remember a while back I asked if Paper clay could be used for functional ware. After reading many posts from those I see in here that truely know there stuff I decided that I would not pursue Paper clay for function items. Yet, that was my choice and I am only one person. There are millions of potters out there making choices like the one I made but they might not be making the right one. You cant control that. We all can hope that they take measures to avoid the danger of hurting someone. Also to the potter might say "not for use with food" but hey the consumer might think "I mean it is a cup....so why not put my morning coffee in it." Its in their hands after that.
Being upset over others trying to achieve something that you "know" is impossible is just a waste of engergy. You know what statement I see most in the ceramic world? "You dont know till you try." So let them try and try and try again. Let each fail hopefully bring them to the conclusion that theyre wasting their time. And yes if the glaze runs then it RUNS! If anything maybe the instructor needs to tighten up a bit on certain people.
Well I got bored in the middle of making this post. Im going to go throw now with my Orange Clay.
Well the slip is good and gone now. Was sad to throw it all away but in all reality it was free. WHen I bought my kiln they had boxes of stuff which included a ton of greenware all wrapped up so i just reclaimed it all. If I found them alive I wouldnt of cared but they were dead for an unknown amount of time and I really wouldnt want to mess with any of the bacteria that could of riddled itself into my slip.
No worries. I just found all my caps to my pour spouts and secured them