This specimen has some interesting crystal forms modifying the cube with dodecahedral and tetrahexahedral faces. Also found in the fluorite is a phantom defined by scattered small lustrous crystals of sphalerite and micro crystals of jamesonite which is visible under magnification. The rest of specimen has crystalline sphalerite, pyrite and calcite on it. A Naica classic!
Pretty specimen I used to sold a lots.
caperojas 3 years ago