Shungite 10mm Faceted Nugget 15-16 Inch Featured_03052026 which may form green stains

which may form green stains or specks on Azurite crystals or aggregates

Tiger Eye is a macrocrystalline Quartz stone with bands of rich golds and browns

Labradorite is usually gray to green

this semi-precious variety of quartz is found in many locations around the world

and features dark manganese dendrites throughout

Shungite 10mm Faceted Nugget 15-16 Inch Featured_03052026 which may form green stainsShungite is a black, lustrous, non crystalline mineraloid consisting of a high percentage of carbon. It was first found in a deposit near Shunga village, in Karelia, Russia, where it gets its name. Shungite has been used as a folk medical treatment since the early 18th century. Peter the Great set up Russia's first spa in Karelia to make use of the water purifying properties of shungite. The antibacterial properties of shungite have been confirmed by