A bright green faceted Cuprian Powellite with nice clarity for the material.
It fluoresces bright yellow-green under short wave UV light. It weighs 0.50 carat. It is 5mm tall. ( about 3/16 of an inch) From a one time find in the 90's in Chile. Cuprian Powellite is a rare variety of Powellite. I have 4 pieces so weight and measure is approximate.