<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">Egyptian blue</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31437342</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:57:55</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">Venetian blue</dcterms:alternative> <dcterms:alternative xml:lang="en">Vestorian blue</dcterms:alternative> <dcterms:alternative xml:lang="en">bleu Egyptian</dcterms:alternative> <dcterms:alternative xml:lang="en">bleu d&apos;Egypte</dcterms:alternative> <dcterms:alternative xml:lang="en">bleu d&apos;alexandrie</dcterms:alternative> <dcterms:alternative xml:lang="en">bleu de Pouzzoles</dcterms:alternative> <dcterms:alternative xml:lang="en">bleu egiziano</dcterms:alternative> <dcterms:alternative xml:lang="en">bleu fritté</dcterms:alternative> <dcterms:alternative xml:lang="en">blue frit</dcterms:alternative> <dcterms:alternative xml:lang="en">blue, Egyptian</dcterms:alternative> <dcterms:alternative xml:lang="en">copper frit</dcterms:alternative> <dcterms:alternative xml:lang="en">Ägyptisch Blau</dcterms:alternative> <dcterms:alternative xml:lang="en">Ägyptischblau</dcterms:alternative> <dcterms:alternative xml:lang="en">Alexandria blue</dcterms:alternative> <dcterms:alternative xml:lang="en">Alexandrian blue</dcterms:alternative> <dcterms:alternative xml:lang="en">Frittenblau</dcterms:alternative> <dcterms:alternative xml:lang="en">Italian blue</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ A synthetic inorganic colorfast pigment having coarse, irregular particles and ranging in color from a powdery blue to a royal blue. It is composed of a double silicate of calcium and copper, prepared by heating a mixture of silica, copper salts, and calcite in a sodium carbonate flux, forming a stable blue frit. Egyptian blue is stable in all types of media and is unaffected by acids or alkali. It was used by the ancient Egyptians over 5000 years ago as a pottery glaze and watercolor pigment in wall paintings. Similar materials, later manufactured in Italy and called Pompeian blue and Pozzuoli blue, have similar chemical compositions and optical properties. ]]></dc:description></metadata>