chalcedonyn.
英 kæl'sedənɪ | 美 kæl'sɛdəni
中文n. [矿物] 玉髓
词根词源
chalcedony (n.)c. 1300, from Latin calcedonius, in Vulgate translating Greek khalkedon in Rev. xxi:19, found nowhere else. Connection with Chalcedon in Asia Minor "is very doubtful" [OED]. The city name is from Phoenician and means "new town."
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