Hi Francis, I am doing well. Getting ready to leave Qatar tomorrow where I've been visiting my husband who is working out here. Today there was a sandstorm so I couldn't go out to explore as planned, though. I'm amazed at your crayons! They're beautiful. And so professionally formed and wrapped, too. I didn't even know there were crayon molds like that! Maybe the green stone just doesn't have much pigment to it? Does your rock tumbler have a rubber liner? Mine does, and I think it's the rubber that is causing the color transfer. I may try it without it and see if that helps. One day I would love to try making some crayons or pastels. I haven't yet looked into how the pastels are made. Have you begun to sell the crayons? I would imagine the scented ones do smell very nice and it's a shame they won't sharpen good. Sandalwood is a nice scent, too. Maybe there's a different essential oil you could try that would require less volume to give good scent. Thank you so much for sharing your work here. If you used a dark paper, I bet the light green would work great even as it is.
The difference between the bone and charred wood is huge in color and texture. The black is deeper and more velvety. It is matte though, whereas the charcoal does keep a slight reflectiveness the bone does not. I read somewhere that bone makes the blackest of blacks and so far that has proved out for me. When thoroughly charred, there is no grit and the dried paint wets instantly. With the charred wood I have a bit of effort to get a good black application, though it does fine for gray. One thing I haven't done yet is experiment to see whether the species of bone matters or the type of bone. So far I've only used deer vertebra. But I have a good bit of other bone parts to try when I get more time. I know there is a difference in the charcoal made from various types of wood, though, and perhaps the problem with my charred wood black is the wood I used. I used a hardwood (oak or hickory, not sure which) for the paint, but later made willow sticks for drawing charcoal and it was much softer than the hardwood. So I may experiment later with paints from the various woods too. So many things to experiment with and so little time, lol.
I'll definitely experiment with charred bone. It's hard to imagine a blacker black than what I've got now, I want to see that.
I haven't tried selling my crayons. I don't see why one would buy this as you can get a multitude of colors for next to nothing. Although If I ever get the scented recipe right I might try offering those.
My tumbler uses all rubber barrels, no linings. I used it to polish silver using steel shot, polish semi-precious stones using abrasives and now to crush pigments using marbles. I couldn't detect any contamination in my lighter pigments. The tumbler sells for around 250$ CAN while individual barrels can be found for 50$ CAN. The barrels are good but in my opinion the tumbler itself isn't worth the money.
As for the molds I make them myself. Here is a collage of the process.
Madison Woods wrote:So many things to experiment with and so little time, lol.
Yes I know! I try to combine interests to make the most of my resources. All the crayon materials are from cosmetics projects. Charcoal is for cooking, biochar, woodgas, metal working and pigment. Mold making for pottery (slip casting), metal casting and garden ornaments. Etc. Etc. Etc. I've always been a slave to my curiosity.