Paraiba Tourmalines in the Host Rock (Batalha Mine, “Heitor”-Shaft)
Fig. Par18a A view into the underground rock formations containing pegmatite materials with copper-bearing tourmalines, albite (white) and quartz (grey) in the “Heitor”-mine (Purple = tourmaline and lepidolite). Picture P. Wild Archive.
Fig. Par18b A spectacular hand specimen with a color-zoned “Paraiba”-tourmaline from the Batalha mine (Heitor shaft). Note: Only very small portion of the tourmaline show the desired blue “neon”-color. Tourmaline on rock matrix with citrine and quartz. Picture P. Wild Archive.
Paraiba Tourmalines in the Host Rock (Batalha Mine, “Heitor”-Shaft)
