Fluor-buergerite Tourmaline from Mexquitic de Carmona, San Luis Potosí, Mexico. Rare bronze-brown tourmaline species from the type locality. Originally known as buergerite, the species was later renamed fluor-buergerite because the type material is fluorine-dominant. Small mounted selection with crystals on matrix and loose crystal sections
8 pieces / 26.810 carats / 12.0 - 5.0 mm
Estimate: $265 - $290