calcedony中文什么意思

n.
【矿物】玉髓。

例句与用法

1. The jade is rubed the hardness is 6 with zhengdong . 5 - 6 . 9 , can not be carved with the steel knife , the malachite similar to hardness of other malachite is emerald , nanyang jade , calcedony , etc .
   和阗玉摩氏硬度为6 . 56 . 9 ，用钢刀刻不动，与其它玉石硬度相近的玉石有翡翠南阳玉玉髓等。

英文释义

名词

1. a milky or greyish translucent to transparent quartz
   同义词：chalcedony