Quote:
Originally Posted by barryem
Paper has pumice in it. Without it a pencil wouldn't leave a mark. Some papers, such as Kleenex and other tissues have extra pumice and we whittlers sometimes use it after sandpaper, which it really is.
The only paper you can be sure doesn't contain pumice is toilet paper, and then only if it isn't made from recycled paper.
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I can't find any reference to the use of pumice (which is mostly silicon dioxide) in papermaking. I would have expected to find a mention in
this article at least. And it would be very surprising if it was used in paper but not mentioned
here.
But talc (magnesium silicate) is certainly added. Did you mean talc?