Aluminocerite-(Ce)

aluminocerite-(Ce)

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Formula: (Ce,REE,Ca)9(Al,Fe3+)(SiO4)3[SiO3(OH)]4(OH)3
Nesosilicate (insular SiO4 groups), cerite group
Specific gravity: 4.675 calculated
Hardness: 5
Streak: White
Colour: Pale pink to reddish pink
Weakly RADIOACTIVE
Environments

Plutonic igneous environments
Pegmatites

Localities

There are two co-type Localities, Scala dei Ratti Quarry, Feriolo, and the Seula mine, Mount Camoscio, Oltrefiume, both at Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy.
At the Ratti quarry aluminocerite-(Ce) occurs in millimeter-sized secondary cavities hosted in aplite-pegmatite veins and pods within granite. At the Seula mine it occurs in centimeter-sized cavities in granite (AM 94.487-493).

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