Did you know that some educational artistic paintings have bone char in it?!
http://en.wikipedia.org/wiki/Bone_char
Answers: Learn more about your vegetarian education,lifestyle and eating at this website:
http://en.wikipedia.org/wiki/Bone_char
Carmine which is red was used by many Old Masters, - it's made of insects' blood, and a similar product is used as red food dye today (called carmoisine). Mummy was a brown color used by the Old Masters too and that was made of ground-up Egyptian mummies (no joke). Sepia was a brown color made from seafish. Today most of these colors aren't used by painters, who prefer chemical-based paint.
No, I did not know that. Nor do I care.
Not to be rude, but may I suggest you do a lot more research into all the myriad forms of carbon and their uses? A wikipedia article hardly counts as a source! Keep in mind that wikipedia is the source material cited by all the fools that claim that eating animals is an acceptable vegetarian practice!
Since you point out the artistic uses of carbon you might also want to read the position papers of the various vegetarian AND vegan groups regarding artwork produced with ANY animal product.
I almost feel you're implying that we should destroy works of art if they contain animal products. You'll not find anyone reliable suggesting that!
Do you know the narrow legal definition of bone char?
Do you know that a manufacturer can legally say they don't use bone char; yet still use burned animal bones in their processing and/or products? Bone char is one *specific* form of burned bone, burn bones the right way and you've got activated charcoal or activated carbon. Look it up and then re-read how incomplete and deceptive that wiki article is please.
One last thing; if you've been using products because the maker told you they don't use bone char, they use activated whatever? You might like to call them back and ask them what the base material for their activated whatever is!