Tourmalinated Quartz Heart

A hand-polished tourmalinated quartz heart from Brazil. Clear quartz encloses embedded black tourmaline crystals (schorl), creating a distinctive internal pattern with dark needles.

Tourmalinated quartz forms under specific geological conditions: schorl needles first grow in a pegmatitic phase, then hydrothermal quartz solutions enclose them. The result is a mineralogical symbiosis between two mineral families.

Each heart is a unique natural product. Shape, color, size, and the exact distribution of schorl vary from piece to piece, which is why the example images serve as a reference.