marchasite
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marcasite — noun Etymology: Middle English marchasite, from Medieval Latin marcasita Date: 15th century 1. a. crystallized pyrite b. a pale yellow to white mineral of the same composition and appearance as pyrite but of different crystalline organization and … New Collegiate Dictionary
marcasite — mar·ca·sì·te s.f. TS mineral. minerale costituito da solfuro di ferro, polimorfo con la pirite {{line}} {{/line}} VARIANTI: marcassite. DATA: sec. XIV. ETIMO: dall ar. marqashītā, dal persiano marqashīshā, cfr. lat. mediev. marchasite … Dizionario italiano
