Fra Angelico blue pigment extraction

Fra Angelico blue pigment extraction. True Lapis Lazuli pigment.
Method based on recipe from book "Il Libro dell' Arte" by Cennino d'Andrea Cennini.
©2014 Attila Gazo (masterpigments.com)
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Music: Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
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