CHRYSOPRASE, noun A mineral, a subspecies of quartz. Its color is commonly apple green, and often extremely beautiful. It is translucent, or sometimes semi-transparent; its fracture even and dull, sometimes a little splintery, sometimes smooth and slightly conchoidal; its harness a little inferior to that of flint.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI