I had just finished throwing a nice vase. As I lifted the bat off the wheel, my phone went off. I have an emergency beep that means I "need to take this call STAT." So I set the bat on my throwing stool and answered my phone, calmed the medical storm, then sat down on my stool. The poor vase felt kind of "squishy."
This is just a guess. Around here everything is high in iron. Yet, there are white sandstone cliffs in Zion National park 20 miles away. over time the iron became concentrated into spheres of hematite causing the sandstone to turn white...Some bacteria in clay or sandstone ingest the iron, concentrate it, then excrete it. This is how moqui balls are made. The excreted iron turns into hematite. The hematite when ground up gives RIO. But the RIO is concentrated around the colonies of bacteria and not evenly distributed throughout your clay evenly. If this process continued, the clay would become more white except around the bacteria colonies. Thus producing a iron speckled white clay.
I didn't sleep last night. Something was nagging at my mind. Then at 3:30 AM it came to me.....There in no cone 0. The chart goes from 01 to 1 in the blink of the eye. NO CONE 0. How many more nights will I turn in my bed wondering why "0" got neglected.
Then my mind drifted to the calender year progression and I noticed "it" happened again. The calender year jumped from 1 BC to 1 AD without a "0" year.
I spent the rest of the night racking my brain to find other examples where "0" had been ignored. I fear that may represent a whole month of sleepless nights of pondering the meaning of not having zero.
I think ceramics and time are conspiring together and refuse to give us "nothing."
If anyone else is wondering what happened to cone 0, enquiring minds want to know.
Thank you for the links to your suppiers. I have used big ceramic store in the past with great success. St George, Utah is a small town and the local supplier just changed ownership. So there are a few hickups in transition. Raw materials were part of that hickup.... There are only a few of us who make our own glazes around here, so the raw materials were put on the back shelf during the transition. .BUT they do have EPK... TJR.
SO from the responses, I get the feeling that there is no great substitution for Strontium.... I guess i will have to wait for the supply truck.
I get my slop and trimming buckets really wet, make a slurry, and stir with electric drill paddle. the thick slurry goes in canvas bags which are hung and drip dried. I store the clay in 5 gallon buckets with a wet rag on top and lids on.
I dig local clay and use the same process.
I tried the meat grinder. The housing for the auger cracked. It was one of many disasters I choose not to admit to owning... There a microbiology term that descibes the amount of disasters....TMTC...(too many to count)...
I used all pupose plaster of paris in my box. No problems so far. My box is 32x19.5 13.75 deep. It is a "Sterilite" 105 Qt container with snap lid. I put 1.5" of plaster in the base. It worked well for slab building.
I thought I would give people a view of my gingerbread church. The tile are all on. I have spent the last two days making 10 1.5" x 4.5" stained glass panels and two 2.5" round window panels. I have to put the lights in the sucker and finish out the ground. I'm slow at it. I have transferred the church onto a 30" x 26" piece of maple plywood. The thing weighs about 35 lbs. Next time I'm going smaller.