Smoky quartz with hyalite on black tourmaline Cactus quartz There are two neat inverted

There are two neat inverted hexagonal shapes in one section

but I suspect many of the breaks are natural based on how few intact pieces I have ever seen

75 x 3 x 1"

the point has a matte white crust that glitters like sand

but it is lush with very clear large botryoidal hyalite

Smoky quartz with hyalite on black tourmaline Cactus quartz There are two neat invertedLocale: Erongo Mountain, Namibia Approx dimensions: 3 x 2. 25 x 2" Approx weight: 274g This is one of my favorite specimens of Erongo hyalite, featuring a dramatic spray of quartz crystals thick with hyalite, perched atop a large piece of black tourmaline (schorl). The glossy schorl has the classic trigonal 'Mercedes' termination characteristic of Erongo material, with intricate growth patterns across the surface. The sides of the schorl are imprinted