Dimensions: 63 mm x 98 mm x 73 mm. Largest Crystal Size: 42 mm. A rare "purplish" scheelite from China, most are considerably smaller. Photo by Jeff Scovil. Spectacular deep plum purple doubly terminated stacked bipyramidal scheelite xls to 42mm on edge and 87mm tip to tip, translucent near the tips with bright lustrous purple faces on two ...