Black tourmaline Blue aragonite there are fine parallel lines

there are fine parallel lines similar to what you see with 3D printing

Approx weight: 650g (1

Locale: High Atlas Mountains

I have a hard time passing up isopod morphs with mineral names

popular as tumbles

Black tourmaline Blue aragonite there are fine parallel linesLocale: Erongo Mountain, Namibia Approx dimensions: 3 x 2. 5 x 2. 5" Approx weight: 287g ** Loose piece on base This statuesque piece of black tourmaline, known as schorl, has the mercedes termination and glossy high luster characteristic of the Erongo region. The piece is effectively three intergrown crystals in a stepped formation, with partial crystals attached at one end. The sides are beautifully striated on the partial crystals, with more