Two growth stages of SHARPLY crystallized, twinned dolomite make for a really superb floater cluster. The bottom crystals are included with hematite, and are red; while the larger crystal perched symmetrically atop is water-clear. The twinning planes here are sharp enough they could have been carved, and the piece is gemmy and mostly transparent....Better in person! For what it is, it is the finest dolomite in its size range I have handled.