Colored clay slib or engobe
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The last one on this row is a mixture of cobalt an black and it gives a great purple.
![](http://farm4.static.flickr.com/3616/3574748667_bc2dc7fa2a.jpg?v=0)
![](http://farm4.static.flickr.com/3637/3606162351_8166de157b_b.jpg)
Art - Human effort to imitate, supplement, alter, or counteract the work of nature. The conscious production or arrangement of sounds, colors, forms, movements, or other elements in a manner that affects the sense of beauty, specifically the production of the beautiful in a graphic or plastic medium. Mind - The human consciousness that originates in the brain and is manifested especially in thought, perception, emotion, will, memory, and imagination.