Wendy & Frank Melanson Collection An exceptional specimen of Cubanite featuring a partial cyclic twin. Two of the twinned crystals are prominently displayed, with an additional two occurring as partial crystals. All of the crystals are complete, showing characteristic striations on all faces. The Cubanite is accented with nicely contrasting crystals of bladed white calcite. This piece has been repaired along the crack at the base of the main crystal.