Large Scalonehedral Crystal Calcite Specimen on Purple AmethystCollector Grade Brazilian Scalenohedral Crystal Clear Calcite on Purple Amethyst This breathtaking specimen showcases a sharp, crystal clear calcite growing on vibrant deep purple amethyst, forming a rare and aesthetically pleasing composition from Ametista do Sul, Brazil. The scalenohedral calcite is flawlessly formed, featuring a sharp, doubly terminated crystal with a distinct twin plane. Its clarity and positioning on an undamaged, all natural