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Name and first discovery : Named after the Greek word for "change" (allaktein), due to its intense pleochroism. Discovered in Sweden in 1884.
Chemistry :
Synonyms : Elfstorpit
Varieties :
Abbreviation : Ala
literature
Moore, P.B. (1968). Crystal chemistry of the basic manganese arsenate minerals: II. The crystal structure of allactite. American Mineralogist: Journal of Earth and Planetary Materials , 53 (5-6), 733-741.