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<p>[QUOTE=&quot;Hommer, post: 8200109, member: 73266&quot;]I read the whole thread yesterday as well hoping someone could outthink me on how to explain color changes to a blind person. There were a couple of thoughts/theories that came to mind, one being temperature where light would be warm and dark being cold, the other theory would be texture as in hard and soft. I concluded the best explanation would be a combination of both as the edges between the mottled dark and light colors are not crisp/hard but instead soft and mixed. The same as one would expect with a chemical treatment dropped onto the surface and wiped around having more concentrated areas of the chemical. </p><p><br /></p><p>I suppose polishing could also produce the same effect as the tone of the surface is worn through in a more heavily polished area.[/QUOTE]</p><p><br /></p>

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