I’m freewheeling in Kyoto for a while. It’s one of my favourite cities to visit. Its small enough to be walkable to most places. A long walk sometimes, admittedly, but then there is an excellent bus and train service that can get you to most places that are a little bit out-of-the-way. It’s quite central to my other interests, as Nara, Osaka and Shigaraki are just short train rides away and good for a day trip. There are more temples and shrines than you can poke a (chop)stick at. I have a few favourites.
But Kiyomizu has to be one of them, as it is easy walking distance from the centre of town or the main station and the roads that lead up to it are a very interesting days entertainment. No matter which way you approach it, there is always something of interest. Because it’s so close to town, it is alway very busy and crowded. A minor drawback.
On this visit to Kyoto, I’m searching for some tungsten carbide tipped pottery turning tools for working with porcelain. They are very specialised tools and a bit hard to find. Actually a lot hard to find! It seems that they are only made in 3 places in the world. Nevada in the US, but the style of those tools are not really what I’m after. Plus his web site isn’t working at the moment and the guy is moving shop currently. Then there is a place somewhere in China, but I haven’t been able to locate just where. Whenever I came across some of these tools during my resent research trip, I was told that the tools were from ‘somewhere else’, then when I got to the ‘somewhere else’ they told me that it wasn’t there, but where I’d just come from? Now I’m in Kyoto and tipped off by my friend Alistair back in Australia, who trained here some time ago, actually many years ago. I hope to track them down here. Alistair doesn’t know the address, but knows someone, who knows someone, who apparently might know.
I’m onto it, nothing like a false start and a dud lead to peak my interest. I like a challenge. When these tools do turn up in Australia, they are terribly expensive when they do, exceeding $100 each. A lot for a small, simple pottery tool. They shatter easily if you drop them, and chip if you hit them against something hard by accident. But they are unbelievably hard-wearing and long-lasting, as long as you look after them. I only own one of them.
My home-made ground bai tunze porcelain stone body is just like throwing with fine sand and water mixture. It is very tough on the fine razor edge of my turning tools. Especially because this kind of ceramic paste ‘clay’ body. and I use the word ‘clay’ here not as a description of anything plastic and workable, but as a generic term to describe what a potter works with on the wheel. My own particular native porcelain stone is a hard igneous rock. I collect it in chunks from a very small hill, or a big mound, where it has pushed up through the ground in some sort of volcanic activity. Too small to be called a hill, and larger than a mound. I decided to call it a knoll. That sounds just about right. Because it is mostly composed of felspar, which melts in the potters kiln at high temperatures to be a tough glass, I decided to call it the glassy knoll.
Now, because it hasn’t been ‘weathered’ or degraded by the elements as yet, it is very dense and hard. It needs to be broken down in two stages in a couple of different rock crushers, first into gravel size, then into small sand sized fragments. It is then ground for hours in a ball mill before it is fine enough to work with. It does not have very much clay mineral in its make-up, so I add a small amount, 1%, of bentonite to my mix. Bentonite is a very fine sticky clay material that I get from Queensland. It is quite a rare material, and one of the few ‘exotic’ minerals that I buy. In the US, they seem to call bentonite ‘V’ gum. I don’t know why, but it’s an interesting name. This ceramic ‘gum’ helps to bind it all together, a bit like a glue, so as to make it a little more responsive on the wheel.
How it all works, such that it makes a native rock, that I can pick up off the ground , into a translucent, hard porcelain, is amazing to me. There is probably a conspiracy theory about it somewhere on the web? So I have decided to explain it by calling it “The single gum theory from the glassy knoll”. That should quash any hint of conspiracy!
fond regards from Steve in Kyoto