エジプシャンブルー
1. Egyptian blueEgyptian blue, also known as calcium copper silicate (CaCuSi4O10 or CaO·CuO·4SiO2), is a pigment used by Egyptians for thousands of years. It is considered to be the first synthetic pigment. The pigment was known to the Romans by the name caeruleum. Vitruvius describes in his work '"De architectura" how it was produced by grinding sand, copper and natron and heating the mixture, shaped into small balls, in a furnace.
Read “Egyptian blue” on English Wikipedia
Read “エジプシャンブルー” on Japanese Wikipedia
Read “Egyptian blue” on DBpedia
Read “Egyptian blue” on English Wikipedia
Read “エジプシャンブルー” on Japanese Wikipedia
Read “Egyptian blue” on DBpedia
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