A showy, aesthetic and RARE specimen of lustrous rich chocolate-brown buergerite crystals to 1.5 cm on matrix from the one-time find in Mexico. A rare example of this tourmaline varietal that was found once, in the 60's, by a miner who brought the lot to Tucson for sale. He died shortly thereafter and to my knowledge nobody has yet rediscovered his locality. 4.4 x 3.7 x 2.2 cm