Article: Chrysoprase. (Jewel of the Month).

Chrysoprase is the medium yellowish-green variety of chalcedony. The word chrysoprase comes from the Greek Chrysoprasos: chrys, meaning, "golden," and prasos--or prason--meaning "leek" (the garden herb, similar to, yet much larger than a spring onion). Chalcedony is a cryptocrystalline (or microcrystalline) variety of quartz. Chrysoprase is just one of dozens of gem chalcedony varieties. But of all the many beautiful gem chalcedonies, chrysoprase is the most highly regarded. This is not necessarily because of its unique qualities, but because it can look like jade (jadeite and nephrite, as well as the comparable serpentine.

In fact, one of its more important ...

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