bn:03515078n
Noun Concept
Categories: Inorganic pigments, Color stubs, Shades of blue, Inorganic compound stubs
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zaffre  Zaffer  zaffer, safflor  Zafre
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Zaffre, a prescientific, or alchemical substance, is a deep blue pigment obtained by roasting cobalt ore, and is made of either an impure form of cobalt oxide or impure cobalt arsenate. Wikipedia
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Zaffre, a prescientific, or alchemical substance, is a deep blue pigment obtained by roasting cobalt ore, and is made of either an impure form of cobalt oxide or impure cobalt arsenate. Wikipedia
Impure oxide of cobalt used as a pigment Wikidata
A blue pigment obtained by roasting cobalt ore. Wiktionary
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