I went online and found an interesting article about why the red paint in Van Gogh's art started turning white. A team from Belgium used X-ray powder diffraction tomography in order to identify the cause. They examined Van Gogh's "Wheat Stack Under a Cloudy Sky". The team identified that the red paint Van Gogh used contained a rare mineral lead called plumbonacrite. Through light exposure, the plumbonacrite was coated in carbonates which caused the red to turn white.
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AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
May 2015
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