Report Black on Black Firing in Studio Operations and Making Work Posted November 24, 2019 Alabama, thanks for your reply. I did get better results when firing greenware. I sourced the sawdust from a sawmill, so I'm not sure how dry it would have been, as you say, it seemed dry. That might explain the glossy, metallic looking marks seen in the photo second from last. I live in a small country town in Australia, so there's not a lot of information available about techniques such as these in the local library or bookstores, but secondhand online is a good idea. Postage from the US to Australia is exorbitant which limits purchasing from there and that's where I'm likely to find the most books. Should the finished result be durable? As you can see from my photos the shine was able to be scrubbed off. This doesn't seem right to me, but I'm not sure of the reason. I'd be grateful for any advice that you can give me on this type of firing. We're into the fire danger period in Australia, so I won't be able to attempt any more firings until mid autumn.