Agrellite

Agrellite ( ) is a rare triclinic inosilicate mineral with four-periodic single chains of silica tetrahedra. It is a white to grey translucent mineral, with a pearly luster and white streak. It has a Mohs hardness of 5.5 and a specific gravity of 2.8. Its type locality is the Kipawa Alkaline Complex, Quebec, Canada, where it occurs as tabular laths in pegmatite lenses. Other localities include Murmansk Oblast, Russia, Dara-i-Pioz Glacier, Tajikistan, and Saima Complex, Liaoning, China. Common associates at the type locality include zircon, eudialyte, vlasovite, miserite, mosandrite-(Ce), and calcite. Agrellite displays pink fluorescence strongly under shortwave and weakly under longwave ultraviolet light. The fluorescent activator is dominantly Mn 2+ , with minor Eu 2+ , Sm 3+ , and Dy 3+ . It is named in honor of Stuart Olof Agrell (1913–1996), a British mineralogist at Cambridge University.

Agrellite ( ) is a rare triclinic inosilicate mineral with four-periodic single chains of silica tetrahedra. It is a white to grey translucent mineral, with a pearly luster and white streak. It has a Mohs hardness of 5.5 and a specific gravity of 2.8. Its type locality is the Kipawa Alkaline Complex, Quebec, Canada, where it occurs as tabular laths in pegmatite lenses. Other localities include Murmansk Oblast, Russia, Dara-i-Pioz Glacier, Tajikistan, and Saima Complex, Liaoning, China. Common associates at the type locality include zircon, eudialyte, vlasovite, miserite, mosandrite-(Ce), and calcite. Agrellite displays pink fluorescence strongly under shortwave and weakly under longwave ultraviolet light. The fluorescent activator is dominantly Mn 2+ , with minor Eu 2+ , Sm 3+ , and Dy 3+ . It is named in honor of Stuart Olof Agrell (1913–1996), a British mineralogist at Cambridge University. ==See also== List of minerals List of minerals named after people ==References==

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