Chrysoprasus | Webster's Dictionary of the English Language

chrysoprasus
chrȳsŏprăsus, i, m., = χρυσόπρασος, the chrysoprase , a precious stone of a golden-yellow and a lee...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
Chrysoprasus
Golden leek, a precious stone of the colour of leek's juice, a greenish-golden colour (Rev. 21:20). ...

Easton's Bible Dictionary