Etched Aquamarine Specimen from Brazil TU2141 sandstone also called Lava Stone

also called Lava Stone

The deposit occurs in alpine-cleft veins—fracture zones within the host rocks—where numerous mineral species crystallize

It has been inactive since the early 2000's

Hyalite doesn't have the same internal structure of tiny spheres of silicon dioxide that cause precious opals to have brilliant displays of color

Etched Aquamarine Specimen from Brazil TU2141 sandstone also called Lava StoneEtched Aquamarine Specimen from Brazil Approx. Dimensions: 2. 5x2x2 inches Approx. Weight: 163. 6 grams Locality: Minas Gerais, Brazil Etched aquamarine from Brazil are natural beryl crystals that have undergone a dissolution process deep underground. Unlike typical smooth faced aquamarine, these specimens feature intricate, geometric surface patternssuch as ridges, spirals, and pitscarved by mineral rich hydrothermal fluids over thousands or millions