Black spirit quartz — chaotic terminations, 265 g (South Africa)

Description

A cluster of black spirit quartz notable for its chaotic terminations across multiple crystal points. The group catches the light on each crystal and measures H 11 cm × W 7 cm × D 3 cm, weighing 265 g. The specimen shows a rich, dark tone across the crystals with varied termination shapes rather than uniform faces. is noted in the description and the piece presents as a compact, upright cluster.

Mineral context

Quartz is silicon dioxide (SiO2) and commonly forms hexagonal prismatic crystals with pointed terminations. It occurs in many igneous, metamorphic and hydrothermal settings.