出典:Wiktionary
出典:『Wiktionary』 (2024/12/14 18:51 UTC 版)
(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “Why used for aggressive black women? Character from "Amos 'n' Andy", or some earlier source?”)
Sapphire
Sapphire (plural Sapphires)
出典:Wikipedia
出典:『Wikipedia』 (2011/08/10 05:13 UTC 版)
Sapphire (Greek: σάπφειρος; sappheiros, "blue stone") is a gemstone variety of the mineral corundum, an aluminium oxide (α-Al2O3), when it is a color other than red or dark pink; in which case the gem would instead be called a ruby, considered to be a different gemstone. Trace amounts of other elements such as iron, titanium, or chromium can give corundum blue, yellow, pink, purple, orange, or greenish color. Pink-orange sapphires are also called padparadscha. Pure chromium is the distinct impurity of rubies. However, a combination of e.g. chromium and titanium can give a sapphire a color distinct from red.
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