wälˈpərˌjīt, wȯl-, -ˌgīt noun
( -s )
Etymology: German walpurg in (from Walpurgis, vein in mine at Schneeberg, central Germany + German -in -ine) + English -ite
: a mineral Bi 4 (UO 2 )(AsO 4 ) 2 O 4 .3H 2 O(?) consisting of a hydrous bismuth uranium arsenate and oxide occurring in thin yellow crystals