This is a choice Shullsburg Calcite with the classic stepped Scalenenohedral crystals that have enlarged clear prismatic terminations. Far more transparent in person this has glassy luster and faint phantoms of internal Pyrite crystals. In excellent condition the only damage is the base and back lower edge area where this was removed. A choice older specimen, these are modern classics and this is like a textbook example of epitaxial alignment of prism faces.
Calcite -Shullsburg habit
Shullsburg, Lafayette County
10.1 x 6.8 x 6.1 CM (cabinet)
Fantastic form with a gem clear "cap" crystal on the termination of the older scalenohedron. In fine condition as seen with only very minor rub spots that are very hard to spot. Even better in person this shows with textbook perfection the habit that became famed from this old locale. Displays well from all sides. These old specimens still turn up from time to time, this one is far better than most.
Classic calcite on sulfide and dolomite matrix from the great discoveries at Shullsburg. Esthetic and well presented, the calcites reach 3.2 CM. The backside isalso displayable. The front display face appears damage free (magnification finds micro nicks)there is contacting on the reverse but all in all it looks pristine. These are well respected as great and distinctive specimens, this is a good affordable example.