Smoky quartz with hyalite on black tourmaline Aragonite Smoky quartz from the Erongo

Smoky quartz from the Erongo region is typically a quite dark brown-black color

but minus the aid of bacteria: mineral-rich waters precipitate barite which binds with sand to form concentric layers around a nucleus

Approx weight: 212g

Some of the calcite is exposed and will fluoresce a weak peachy red under 365 nm UV light

and imprints of crystals that have dissolved

Smoky quartz with hyalite on black tourmaline Aragonite Smoky quartz from the ErongoLocale: Erongo Mountain, Namibia Approx dimensions: 4. 25 x 3 x 2" Approx weight: 437g ** Loose piece on base Smoky quartz from the Erongo region is typically a quite dark brown black color, with lower clarity due to natural inclusions, and a flat surface luster caused by etching. This piece is a bit lighter than usual with some crystal faces glassy clear, providing a window inside. Erongo smoky grows sculptural angular points with nice striations