chalcedony
n. 玉髓
形容词：chalcedonic
近义词：marble，calcedony，
英英释义
Noun
- a milky or greyish translucent to transparent quartz
例句
用作名词(n.)
- It's a green variety of chalcedony valued as a gemstone.这是一种绿色的玉髓，被视作宝石。