L533 calcite 17th century Italian fragment mounted

17th century Italian fragment mounted with fossil rose sea coral

Combined with the coordinating mineral

75” high x 6” wide x 3

The powders coordinate with the chalcedony rosettes and fragment piece

L533 calcite 17th century Italian fragment mountedFishtail selenite in its matrix on lucite. Fishtail selenite is made up twin crystals of optical selenite that have grown together in the shape of angel wings or "fishtails." This crystalline form of selenite gypsum is comprised of striations that look like optical light fibers. Unusual in size, these specimens have been mined by hand in Mexico. Size: 13 high x 13 wide x 7. 5 deep 23 lbs