masaegu,
Thanks for the kind words.
Unfortunately the glaciers back in the ice age scraped all of the high fire primary and secondary clays down to the NY and NJ area
. So mainly we have low firing earthenware clays left here in NH. So my clay body is composed of commercial materials from elsewhere in the US. However I put local granite dust (NH is the Granite State) and rocks and also sand from my property into that body to give the clay better tsuchiaji. Sometimes I add some local clay too.....but not too much as the iron and other fluxes would lower the firing range a lot.
I fire a five chamber wood fueled noborigama here at my studio.
best,
.................john