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douglasite

noun
doug·la·site | \ ˈdəgləˌsīt , ˈdu̇g- \
plural -s

Definition of douglasite 

: a mineral K2[FeCl4·2H2O](?) consisting of a hydrated potassium iron chloride

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History and Etymology for douglasite

German douglasit, from Douglashall, near Stassfurt, Germany, its locality + German -it -ite

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