出典:Wiktionary
From Latin chrysoberyllus, from Ancient Greek χρῡσοβήρυλλος (khrūsobḗrullos, “gold beryl”), from χρυσός (khrusós, “gold”) after its color, and βήρυλλος (bḗrullos, “beryl”).
chrysoberyl (countable かつ uncountable, 複数形 chrysoberyls)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/11 19:29 UTC 版)
The mineral or gemstone chrysoberyl, not to be confused with beryl, is an aluminate of beryllium with the formula BeAl2O4. The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar". Despite the similarity of their names, chrysoberyl and beryl are two completely different gemstones. Chrysoberyl is the third-hardest frequently encountered natural gemstone and lies at 8.5 on the hardness scale, between corundum (9) and topaz (8).