Agrell.info

Agrellite

Agrellite is a rare mineral which occurs as needle-like crystals. They are whitish, somewhat translucent, agrellite crystal  agrellite crystal in UV light
An agrellite crystal in normal white light (left) and in UV light (right). The crystal is 16 mm long.
and have a blank, shimmering surface. In ultraviolet light, the crystals shine pink. The mineral can be found at the Kipawa River in Québec, Canada; in Marathon County, Wisconsin, U.S.A.; and with some luck at well-assorted mineral fairs. Its chemical composition is NaCa2Si4O10F.

The mineral was named in honor of Stuart Agrell, who was a geologist at the University of Cambridge. His grandfather was Frans Wilhelm Agrell.

Literature (most of it not studied by us)

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