<skos:prefLabel xml:lang="en">Mars pigment</skos:prefLabel>
<skos:prefLabel xml:lang="nl">Mars pigment</skos:prefLabel>
<skos:prefLabel xml:lang="es">pigmento de Marte</skos:prefLabel>
<skos:altLabel xml:lang="en">Mars pigments</skos:altLabel>
<skos:altLabel xml:lang="en">pigment, Mars</skos:altLabel>
<skos:altLabel xml:lang="en">Mars colors (pigments)</skos:altLabel>
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<skos:note xml:lang="en">"Mars" is now the common name used for synthetic iron oxide pigments. Mars colors are made from hydrated iron oxide co-precipitated with alum using lime or potash. The proportion of the mixture controls the degree of color; drying the product produces Mars yellow, other colors include orange, red, black, brown, and violet, produced by calcining the yellow. "Mars" was originally a brand name in the late 18th century.</skos:note>
<skos:notation>300014017</skos:notation>
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