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Mineral: Anorthite
Description: {010}, {20-1}, {001}, modified
Location: Île Saint-Paul (St. Paul Island), France
Author: Lacroix, 1897. In: V.M. Goldschmidt, Atlas der Krystallformen, 1913-1923 ('Feldspat-Gruppe. Anorthit').
System: Triclinic, point group: -1
Cell: a: 635, b: 1, c: 1.1, alpha: 92.98, beta: , gamma: 91.15