ˌkalkōˈfiˌlīt noun
( -s )
Etymology: German chalkophyllit, from chalk- chalc- + phyll- + -it -ite
: a highly basic arsenate and sulfate of copper and aluminum Cu 18 Al 2 (AsO 4 ) 3 (SO 4 ) 3 (OH) 27 .33H 2 O of various shades of green that occurs in tabular crystals or foliated masses