Smoky quartz with hyalite on black tourmaline Picture jasper This is caused by natural

This is caused by natural etching just like trigons in diamonds

The heavy base is pyrite

The hyalite on this specimen may be "hidden" on the bottom

Like other Cubaris varieties they can be slow to establish a larger population

The largest crystal (just shy of 1cm) has a different shape from the rest: instead of two symmetrical faces on the edges it has one very large face and one that barely exists

Smoky quartz with hyalite on black tourmaline Picture jasper This is caused by naturalLocale: 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