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出典:Wiktionary
出典:『Wiktionary』 (2025/12/18 21:28 UTC 版)
From Italian zaffera, from Latin sapphirus (“sapphire”). Doublet of sapphire.
zaffre (countable and uncountable, plural zaffres)
出典:Wikipedia
出典:『Wikipedia』 (2010/03/06 06:59 UTC 版)
Zaffre, a pre-scientific substance (see List of alchemical substances), is a deep blue pigment obtained by roasting cobalt ore, and is made of either an impure form cobalt oxide or impure cobalt arseniate. During the Victorian Era, zaffre was used to prepare smalt and stain glass blue.
zaffre