出典:Wiktionary
Diamond
出典:Wikipedia
出典:『Wikipedia』 (2011/06/02 03:50 UTC 版)
In mineralogy, diamond (from the ancient Greek αδάμας – adámas "unbreakable") is an allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at ambient conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. Those properties determine the major industrial application of diamond in cutting and polishing tools.
ファセット・ダイヤモンド
a faceted diamond
the ace of diamonds
a cut diamond
a bad diamond
a diamond mine
a flawed diamond
native diamond
a genuine diamond
a false diamond
純金.
a fake diamond
a valuable diamond
鉄鉱石.
名詞の変化形:
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