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Name and first discovery : Named in 1823 by Gustav Rose after the Greek word "anorthosi" for "not right-angled" due to its triclinic symmetry.
Chemistry : Polymorph after Dmisteinbergite, Stöfflerite and Svyatoslavite
Synonyms : Amphodelite, Barsovite, Beffanite, Biotin, Claciklase, Christianite, Latropite
Varieties : Bytownite, Labradorite
Abbreviation: An
literature
Dana, J. D., & Dana, E. S. (1892). The system of mineralogy of James Dwight Dana, 1837-1868: descriptive mineralogy . J. Wiley & sons.