Passion Amethyst Quartz with red phantoms 12,18 ct

Hexagonal red Hematoid Quartz phantoms composed of tiny iron oxides particles.

Above these there is a black phantom composed by diminute dendritic pyrite crystals.

The outer amethyst quartz is filled by yellow goethite sprays.

This 3 steps evolution represent alternation of oxidized and reduced chimical conditions.

Cabochon cut natural gemstone.