Polycrystalline and Mono-crystalline is the type of clay powder that is similar to the dust which sits on the solar panels.
black-powder and clay
Of course it is. Do not do it.
Increase the fines percentage % in powder
a dry powder
To add colour to clay, it is best to allow the clay to dry completely, crush it to a powder, mix the dry colour powder and then rehydrate. Wear a mask, clay dust is harmful.You can also add wet colours to clay slip, the hardest thing is adding colours to clay when it is plastic.Mostly however the clay is not coloured, instead you colour the pot using slips or glazes.
Kaolin is white clay.
We cannot process clay since we don't have any enzymes for it. For industry, they have specialized machines that can process clay. Clay has also been used to make solar cell.
you make it by mixing limestone powder and clay in a kiln
Graphite is used as a lubricant and, mixed with clay, in pencil lead.
baking powder
Kaolin powder in Hindi is called "kaoline ka choorna" or "kaoline ki bhujia".
The desert Indians would make a clay vessel and load it then seal it with clay. It would bake in the sun all day. Now there are solar cookers the use a parabolic dish to concentrate the sun on a cooking rack.