... animal andplant products, are also termed organic. (Do not forget that many substances, although looking deceptivelylike inorganic materials are, of course, derived from animals or plants. Coal and ... fossilised plants and animals.) There are, too, both natural and artificial inorganic materials. For example, the pigment vermilion can occur naturally as the mineral cinnabar and can also be manufacturedfrom ... ceramics and glass are all derived from rocks and/ and organic. You will perhaps already be familiarwith the idea or minerals and are termed inorganic. The idea that wood, paper, and many textiles...