Today my family visited the Royal Ontario Museum, and we had a wonderful time. Between dinosaurs and bat caves and totem poles and paperweights, we also explored the new Teck Suite of Galleries: Earth’s Treasures! Here we found rocks of all shapes and sizes (even a meteor from the moon!) but it was the above specimen that really caught my eye.
It is a sample of secondary copper ore, from the Bisbee area of Arizona, made up of malachite and azurite. In sitting beside it, I began to think of the amount of pigment such a rock would produce (not that I’m suggesting we pulverize such a beautiful sample, of course …). I didn’t come to any conclusions, but I think that it would be fair to label it as a “lifetime supply”.
Hello~.. I baked mixtures of palygorskite(palygorskite) and woad powder.
But only one bowl of my mixtures become dark. Another bowls didn’t become dark.
I can’t understand how to make maya blue.
I only thought that palygorskite and woad powder mix together and heat them.
So I made mixture and baked in oven(the temperature is about 120˚C) 120˚C->393K
Why my mixture didn’t become dark?;;
Here is my blog, http://blog.naver.com/x1x9x
There is the pictures of my experiment.
Please Help Me