Faceted smoky quartz drops that shift from nearly clear to deep tobacco brown depending on the light

Sedona red earth

In contemporary practice

Amethyst is the violet variety of quartz (SiO₂)

its color set by trace iron and natural irradiation

Amethyst Point Black Tourmaline Faceted smoky quartz drops thatQuartz at its most architecturalsix faces converging to a single point. Amethyst is quartz (SiO) colored violet to purple by iron impurities and natural irradiation within the host rock. The point form preserves the crystals natural growth habit: a hexagonal prism with a pyramidal terminus, a shape that reflects the trigonal symmetry of the quartz system. Color intensity varies from pale lilac to deep grape, deepening where growth was slowest. Mohs 7.