chalcedony

n.

玉髓；

复数：chalcedonies

1. 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。

Length-slow Chalcedony: A New Testament for Vanished Evaporites
A proposed mechanism for the growth of chalcedony
The nature of water in chalcedony and opal-C from brazilian agate geodes
Crystal structure and growth fabric of length-fast chalcedony
Replacement of fossils by length-slow chalcedony and associated dolomitization
Agate and chalcedony from igneous and sedimentary hosts aged from 13 to 3480 Ma: a cathodoluminescence study
Occurrence of moganite-rich chalcedony in Deccan flood basalts, Killari, Maharashtra, India
Chalcedonic quartz and occurrence of quartzine (length‐slow chalcedony) in pelagic sediments
U-Pb ages of ferberite, chalcedony, agate, 'U-mica' and pitchblende: constraints on the mineralization history of the Schwarzwald or...
Occurrence and distribution of “moganite” in agate/chalcedony: a combined micro-Raman, Rietveld, and cathodoluminescence study