Black tourmaline in albite matrix with hyalite and minor fluorite Hematite Approx weight: 90–110g due to

Approx weight: 90–110g due to natural variations of material density

Etching has also created a light crosshatch effect in the surface

Some areas on this piece phosphoresces briefly

as though the core is pink and the surface blue

Approx weight: 71g

Black tourmaline in albite matrix with hyalite and minor fluorite Hematite Approx weight: 90–110g due toLocale: Erongo Mountain, Namibia Approx dimensions: 5 x 3. 25 x 3" Approx weight: 603g This is a great "hodgepodge" specimen, featuring a large cluster of botryoidal hyalite on a Dalmatian spotty matrix of white albite, black tourmaline, and smoky quartz. The crystals of black tourmaline, known as schorl, are well formed and many have the 'Mercedes' termination characteristic of the Erongo region. A few small cubic fluorite crystals also spot the