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Oils are used in modern paint with clay pigments but I don't know how<br>far back in history that goes. Oil is the solution for the particles so I<br>doubt the color would change much. Clay minerals are molecules shaped<br>like flat dinner plates. Other molecules, like water, will fit in between them and give<br>clays their properties. <br><br>Clays are remarkably useful substances throughout history. <br><br>You get various pigments from clay minerals by drying to remove the water, heating them,<br>or reacting them with other chemicals and metals.<br><br>Cinnabar is mercuric sulfide.<br><br>The artists and alchemists didn't know the chemical formulas but they know <br>what you got from mixing substances and could follow a recipe.<br><br>Magnus<br>who as an alchemist is fascinated by <span lang="el"><i>Hydrargyrum </i>but has enough modern sense<br>to stay far away from it.<br><i><br></i></span><br><br>
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<div><font face="Comic Sans MS" size="4">Would it change differently if oil was
used instead of water?</font></div>
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<div>Lady Runa of The Thundering Herd<br><a href="http://www.bedlambazaar.com" target="_blank"><br></a><a href="http://thethunderingherd.net" target="_blank"></a></div>
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